75747934636 has 24 divisors (see below), whose sum is σ = 144621674064. Its totient is φ = 34428026880.

The previous prime is 75747934579. The next prime is 75747934643. The reversal of 75747934636 is 63643974757.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521116 + ... + 650428.

It is an arithmetic number, because the mean of its divisors is an integer number (6025903086).

Almost surely, 2^75747934636 is an apocalyptic number.

It is an amenable number.

75747934636 is a deficient number, since it is larger than the sum of its proper divisors (68873739428).

75747934636 is a wasteful number, since it uses less digits than its factorization.

75747934636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142641 (or 142639 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 61.

The spelling of 75747934636 in words is "seventy-five billion, seven hundred forty-seven million, nine hundred thirty-four thousand, six hundred thirty-six".