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26873634140 = 2257018872161
BaseRepresentation
bin11001000001110010…
…110001110101011100
32120100212111001122222
4121001302301311130
5420014122243030
620202351124512
71640645056403
oct310162616534
976325431588
1026873634140
11104405140a1
12525bb13738
1326c3768282
14142d14a63a
15a744233e5
hex641cb1d5c

26873634140 has 48 divisors (see below), whose sum is σ = 56605034304. Its totient is φ = 10717056000.

The previous prime is 26873634127. The next prime is 26873634149. The reversal of 26873634140 is 4143637862.

It is a junction number, because it is equal to n+sod(n) for n = 26873634091 and 26873634100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26873634149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12434660 + ... + 12436820.

It is an arithmetic number, because the mean of its divisors is an integer number (1179271548).

Almost surely, 226873634140 is an apocalyptic number.

26873634140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26873634140 is an abundant number, since it is smaller than the sum of its proper divisors (29731400164).

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

26873634140 is a wasteful number, since it uses less digits than its factorization.

26873634140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3756 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 26873634140 in words is "twenty-six billion, eight hundred seventy-three million, six hundred thirty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 701 887 1402 1774 2161 2804 3505 3548 4322 4435 7010 8644 8870 10805 14020 17740 21610 43220 621787 1243574 1514861 1916807 2487148 3029722 3108935 3833614 6059444 6217870 7574305 7667228 9584035 12435740 15148610 19168070 30297220 38336140 1343681707 2687363414 5374726828 6718408535 13436817070 26873634140