129077580064 has 48 divisors (see below), whose sum is σ = 254703712032. Its totient is φ = 64391100928.

The previous prime is 129077580053. The next prime is 129077580089. The reversal of 129077580064 is 460085770921.

It is a super-2 number, since 2×129077580064² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 49021692 + ... + 49024324.

It is an arithmetic number, because the mean of its divisors is an integer number (5306327334).

Almost surely, 2^129077580064 is an apocalyptic number.

It is an amenable number.

129077580064 is a deficient number, since it is larger than the sum of its proper divisors (125626131968).

129077580064 is a wasteful number, since it uses less digits than its factorization.

129077580064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569 (or 5561 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 129077580064 in words is "one hundred twenty-nine billion, seventy-seven million, five hundred eighty thousand, sixty-four".