7700813128 has 16 divisors (see below), whose sum is σ = 14579210880. Its totient is φ = 3813023568.

The previous prime is 7700813117. The next prime is 7700813129. The reversal of 7700813128 is 8213180077.

It is not an unprimeable number, because it can be changed into a prime (7700813129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672000 + ... + 4673647.

It is an arithmetic number, because the mean of its divisors is an integer number (911200680).

Almost surely, 2^7700813128 is an apocalyptic number.

It is an amenable number.

7700813128 is a deficient number, since it is larger than the sum of its proper divisors (6878397752).

7700813128 is a wasteful number, since it uses less digits than its factorization.

7700813128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345756 (or 9345752 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 7700813128 is about 87754.2769783901. The cubic root of 7700813128 is about 1974.7503292146.

The spelling of 7700813128 in words is "seven billion, seven hundred million, eight hundred thirteen thousand, one hundred twenty-eight".