129872336260 has 24 divisors (see below), whose sum is σ = 272796574680. Its totient is φ = 51936616704.

The previous prime is 129872336257. The next prime is 129872336263. The reversal of 129872336260 is 62633278921.

It is an interprime number because it is at equal distance from previous prime (129872336257) and next prime (129872336263).

It can be written as a sum of positive squares in 4 ways, for example, as 52951532544 + 76920803716 = 230112^2 + 277346^2 .

It is not an unprimeable number, because it can be changed into a prime (129872336263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683169 + ... + 852328.

It is an arithmetic number, because the mean of its divisors is an integer number (11366523945).

Almost surely, 2^129872336260 is an apocalyptic number.

129872336260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129872336260 is an abundant number, since it is smaller than the sum of its proper divisors (142924238420).

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

129872336260 is a wasteful number, since it uses less digits than its factorization.

129872336260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539735 (or 1539733 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 129872336260 in words is "one hundred twenty-nine billion, eight hundred seventy-two million, three hundred thirty-six thousand, two hundred sixty".