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3864466788680 = 23523136116931823
BaseRepresentation
bin111000001111000100001…
…010111001000101001000
3111200102212100001012022202
4320033010022321011020
51001303411444214210
612115151142535332
7546125042502251
oct70170412710510
914612770035282
103864466788680
11125aa02834a23
12524b62137548
13220557782684
14d5081053b28
156a7cc4b69a5
hex383c42b9148

3864466788680 has 128 divisors (see below), whose sum is σ = 9090109163520. Its totient is φ = 1475809505280.

The previous prime is 3864466788653. The next prime is 3864466788727. The reversal of 3864466788680 is 868876644683.

It is a happy number.

It is a super-2 number, since 2×38644667886802 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3864466788598 and 3864466788607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2119838249 + ... + 2119840071.

It is an arithmetic number, because the mean of its divisors is an integer number (71016477840).

Almost surely, 23864466788680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3864466788680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4545054581760).

3864466788680 is an abundant number, since it is smaller than the sum of its proper divisors (5225642374840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3864466788680 is a wasteful number, since it uses less digits than its factorization.

3864466788680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 1783627776, while the sum is 74.

The spelling of 3864466788680 in words is "three trillion, eight hundred sixty-four billion, four hundred sixty-six million, seven hundred eighty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 1361 1693 1823 2722 3386 3646 5444 6772 6805 7292 8465 9115 10888 13544 13610 14584 16930 18230 27220 31303 33860 36460 38939 41929 54440 62606 67720 72920 77878 83858 125212 155756 156515 167716 194695 209645 250424 311512 313030 335432 389390 419290 626060 778780 838580 1252120 1557560 1677160 2304173 2481103 3086339 4608346 4962206 6172678 9216692 9924412 11520865 12345356 12405515 15431695 18433384 19848824 23041730 24690712 24811030 30863390 46083460 49622060 52995979 57065369 61726780 70985797 92166920 99244120 105991958 114130738 123453560 141971594 211983916 228261476 264979895 283943188 285326845 354928985 423967832 456522952 529959790 567886376 570653690 709857970 1059919580 1141307380 1419715940 2119839160 2282614760 2839431880 4200507379 8401014758 16802029516 21002536895 33604059032 42005073790 84010147580 96611669717 168020295160 193223339434 386446678868 483058348585 772893357736 966116697170 1932233394340 3864466788680