129924844812 has 36 divisors (see below), whose sum is σ = 375338441296. Its totient is φ = 37121384160.

The previous prime is 129924844799. The next prime is 129924844853. The reversal of 129924844812 is 218448429921.

129924844812 is a `hidden beast` number, since 1 + 29 + 92 + 484 + 48 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 257787139 + ... + 257787642.

Almost surely, 2^129924844812 is an apocalyptic number.

129924844812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129924844812 is an abundant number, since it is smaller than the sum of its proper divisors (245413596484).

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

129924844812 is a wasteful number, since it uses less digits than its factorization.

129924844812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515574798 (or 515574793 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 129924844812 in words is "one hundred twenty-nine billion, nine hundred twenty-four million, eight hundred forty-four thousand, eight hundred twelve".