129936312864 has 96 divisors (see below), whose sum is σ = 379083862080. Its totient is φ = 43300339200.

The previous prime is 129936312841. The next prime is 129936312889. The reversal of 129936312864 is 468213639921.

129936312864 is a `hidden beast` number, since 1 + 299 + 36 + 312 + 8 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 129936312864.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516244 + ... + 3553004.

It is an arithmetic number, because the mean of its divisors is an integer number (3948790230).

Almost surely, 2^129936312864 is an apocalyptic number.

It is an amenable number.

129936312864 is an abundant number, since it is smaller than the sum of its proper divisors (249147549216).

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

129936312864 is a wasteful number, since it uses less digits than its factorization.

129936312864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40871 (or 40857 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 129936312864 in words is "one hundred twenty-nine billion, nine hundred thirty-six million, three hundred twelve thousand, eight hundred sixty-four".