129632575677 has 16 divisors (see below), whose sum is σ = 188576735040. Its totient is φ = 78556755200.

The previous prime is 129632575661. The next prime is 129632575687. The reversal of 129632575677 is 776575236921.

It is a happy number.

It is not a de Polignac number, because 129632575677 - 2⁴ = 129632575661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129632575677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129632575637) by changing a digit.

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, 107899 + ... + 520487.

It is an arithmetic number, because the mean of its divisors is an integer number (11786045940).

Almost surely, 2^129632575677 is an apocalyptic number.

It is an amenable number.

129632575677 is a deficient number, since it is larger than the sum of its proper divisors (58944159363).

129632575677 is a wasteful number, since it uses less digits than its factorization.

129632575677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422124.

The product of its digits is 33339600, while the sum is 60.

The spelling of 129632575677 in words is "one hundred twenty-nine billion, six hundred thirty-two million, five hundred seventy-five thousand, six hundred seventy-seven".