76806137608 has 16 divisors (see below), whose sum is σ = 145437366060. Its totient is φ = 38022840000.

The previous prime is 76806137591. The next prime is 76806137659. The reversal of 76806137608 is 80673160867.

It can be written as a sum of positive squares in 2 ways, for example, as 67308075844 + 9498061764 = 259438^2 + 97458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47527743 + ... + 47529358.

Almost surely, 2^76806137608 is an apocalyptic number.

It is an amenable number.

76806137608 is a deficient number, since it is larger than the sum of its proper divisors (68631228452).

76806137608 is a wasteful number, since it uses less digits than its factorization.

76806137608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95057208 (or 95057204 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 76806137608 in words is "seventy-six billion, eight hundred six million, one hundred thirty-seven thousand, six hundred eight".