129339011976 has 64 divisors (see below), whose sum is σ = 325365828480. Its totient is φ = 42844408320.

The previous prime is 129339011947. The next prime is 129339011987. The reversal of 129339011976 is 679110933921.

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, 4178316 + ... + 4209156.

It is an arithmetic number, because the mean of its divisors is an integer number (5083841070).

Almost surely, 2^129339011976 is an apocalyptic number.

It is an amenable number.

129339011976 is an abundant number, since it is smaller than the sum of its proper divisors (196026816504).

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

129339011976 is a wasteful number, since it uses less digits than its factorization.

129339011976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31934 (or 31930 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 51.

The spelling of 129339011976 in words is "one hundred twenty-nine billion, three hundred thirty-nine million, eleven thousand, nine hundred seventy-six".