77031693234 has 48 divisors (see below), whose sum is σ = 167231900160. Its totient is φ = 25626540480.

The previous prime is 77031693209. The next prime is 77031693289. The reversal of 77031693234 is 43239613077.

It is a happy number.

77031693234 is a `hidden beast` number, since 7 + 7 + 0 + 316 + 9 + 323 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 77031693234.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28413139 + ... + 28415849.

It is an arithmetic number, because the mean of its divisors is an integer number (3483997920).

Almost surely, 2^77031693234 is an apocalyptic number.

77031693234 is an abundant number, since it is smaller than the sum of its proper divisors (90200206926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77031693234 is a wasteful number, since it uses less digits than its factorization.

77031693234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255 (or 5252 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 77031693234 in words is "seventy-seven billion, thirty-one million, six hundred ninety-three thousand, two hundred thirty-four".