770773885956 has 36 divisors (see below), whose sum is σ = 1993655455792. Its totient is φ = 250949636784.

The previous prime is 770773885897. The next prime is 770773885979. The reversal of 770773885956 is 659588377077.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248956426 + ... + 248959521.

Almost surely, 2^770773885956 is an apocalyptic number.

It is an amenable number.

770773885956 is an abundant number, since it is smaller than the sum of its proper divisors (1222881569836).

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

770773885956 is a wasteful number, since it uses less digits than its factorization.

770773885956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497916000 (or 497915995 counting only the distinct ones).

The product of its (nonzero) digits is 622339200, while the sum is 72.

The spelling of 770773885956 in words is "seven hundred seventy billion, seven hundred seventy-three million, eight hundred eighty-five thousand, nine hundred fifty-six".