129577976197 has 8 divisors (see below), whose sum is σ = 129921084000. Its totient is φ = 129235203120.

The previous prime is 129577976183. The next prime is 129577976207. The reversal of 129577976197 is 791679775921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129577976197 - 2²⁷ = 129443758469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129577977197) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 701283 + ... + 866575.

It is an arithmetic number, because the mean of its divisors is an integer number (16240135500).

Almost surely, 2^129577976197 is an apocalyptic number.

It is an amenable number.

129577976197 is a deficient number, since it is larger than the sum of its proper divisors (343107803).

129577976197 is a wasteful number, since it uses less digits than its factorization.

129577976197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167363.

The product of its digits is 105019740, while the sum is 70.

The spelling of 129577976197 in words is "one hundred twenty-nine billion, five hundred seventy-seven million, nine hundred seventy-six thousand, one hundred ninety-seven".