76778070752 has 24 divisors (see below), whose sum is σ = 154843581312. Its totient is φ = 37452716800.

The previous prime is 76778070737. The next prime is 76778070763. The reversal of 76778070752 is 25707087767.

It is a congruent number.

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, 29258624 + ... + 29261247.

It is an arithmetic number, because the mean of its divisors is an integer number (6451815888).

Almost surely, 2^76778070752 is an apocalyptic number.

It is an amenable number.

76778070752 is an abundant number, since it is smaller than the sum of its proper divisors (78065510560).

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

76778070752 is a wasteful number, since it uses less digits than its factorization.

76778070752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58519922 (or 58519914 counting only the distinct ones).

The product of its (nonzero) digits is 8067360, while the sum is 56.

The spelling of 76778070752 in words is "seventy-six billion, seven hundred seventy-eight million, seventy thousand, seven hundred fifty-two".