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61941876084 = 223211345745247
BaseRepresentation
bin111001101100000001…
…100000010101110100
312220212211120022221200
4321230001200111310
52003324110013314
644242233212500
74321656155004
oct715401402564
9186784508850
1061941876084
11242a6635330
1210008261130
135ac1b634aa
142dd873c004
151927e83709
hexe6c060574

61941876084 has 72 divisors (see below), whose sum is σ = 170862601728. Its totient is φ = 18764421120.

The previous prime is 61941876067. The next prime is 61941876089. The reversal of 61941876084 is 48067814916.

61941876084 is a `hidden beast` number, since 6 + 19 + 4 + 18 + 7 + 608 + 4 = 666.

It is a super-3 number, since 3×619418760843 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 61941876084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61941876089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1346349 + ... + 1391595.

Almost surely, 261941876084 is an apocalyptic number.

It is an amenable number.

61941876084 is an abundant number, since it is smaller than the sum of its proper divisors (108920725644).

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

61941876084 is a wasteful number, since it uses less digits than its factorization.

61941876084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48725 (or 48720 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 61941876084 in words is "sixty-one billion, nine hundred forty-one million, eight hundred seventy-six thousand, eighty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 3457 6914 10371 13828 20742 31113 38027 41484 45247 62226 76054 90494 114081 124452 135741 152108 180988 228162 271482 342243 407223 456324 497717 542964 684486 814446 995434 1368972 1493151 1628892 1990868 2986302 4479453 5972604 8958906 17917812 156418879 312837758 469256637 625675516 938513274 1407769911 1720607669 1877026548 2815539822 3441215338 5161823007 5631079644 6882430676 10323646014 15485469021 20647292028 30970938042 61941876084