129977367031680 has 256 divisors, whose sum is σ = 475521132902400. Its totient is φ = 29581604831232.

The previous prime is 129977367031627. The next prime is 129977367031697. The reversal of 129977367031680 is 86130763779921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17621560 + ... + 23884599.

It is an arithmetic number, because the mean of its divisors is an integer number (1857504425400).

Almost surely, 2^{129977367031680} is an apocalyptic number.

129977367031680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129977367031680 is an abundant number, since it is smaller than the sum of its proper divisors (345543765870720).

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

129977367031680 is a wasteful number, since it uses less digits than its factorization.

129977367031680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41506421 (or 41506409 counting only the distinct ones).

The product of its (nonzero) digits is 144027072, while the sum is 69.

The spelling of 129977367031680 in words is "one hundred twenty-nine trillion, nine hundred seventy-seven billion, three hundred sixty-seven million, thirty-one thousand, six hundred eighty".