77597134538 has 32 divisors (see below), whose sum is σ = 145129701888. Its totient is φ = 30229945200.

The previous prime is 77597134463. The next prime is 77597134541. The reversal of 77597134538 is 83543179577.

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, 3145793 + ... + 3170363.

It is an arithmetic number, because the mean of its divisors is an integer number (4535303184).

Almost surely, 2^77597134538 is an apocalyptic number.

77597134538 is a deficient number, since it is larger than the sum of its proper divisors (67532567350).

77597134538 is a wasteful number, since it uses less digits than its factorization.

77597134538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45098.

The product of its digits is 22226400, while the sum is 59.

The spelling of 77597134538 in words is "seventy-seven billion, five hundred ninety-seven million, one hundred thirty-four thousand, five hundred thirty-eight".