129900925476 has 48 divisors (see below), whose sum is σ = 384891633280. Its totient is φ = 37114549920.

The previous prime is 129900925457. The next prime is 129900925481. The reversal of 129900925476 is 674529009921.

129900925476 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 0 + 0 + 92 + 547 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85912555 + ... + 85914066.

Almost surely, 2^129900925476 is an apocalyptic number.

It is an amenable number.

129900925476 is an abundant number, since it is smaller than the sum of its proper divisors (254990707804).

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

129900925476 is a wasteful number, since it uses less digits than its factorization.

129900925476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171826641 (or 171826633 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 129900925476 in words is "one hundred twenty-nine billion, nine hundred million, nine hundred twenty-five thousand, four hundred seventy-six".