76968370778 has 16 divisors (see below), whose sum is σ = 125474201160. Its totient is φ = 35197955136.

The previous prime is 76968370747. The next prime is 76968370789. The reversal of 76968370778 is 87707386967.

It can be written as a sum of positive squares in 4 ways, for example, as 62713682329 + 14254688449 = 250427^2 + 119393^2 .

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, 13576625 + ... + 13582292.

Almost surely, 2^76968370778 is an apocalyptic number.

76968370778 is a deficient number, since it is larger than the sum of its proper divisors (48505830382).

76968370778 is a wasteful number, since it uses less digits than its factorization.

76968370778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27159041.

The product of its (nonzero) digits is 149361408, while the sum is 68.

The spelling of 76968370778 in words is "seventy-six billion, nine hundred sixty-eight million, three hundred seventy thousand, seven hundred seventy-eight".