7688920936 has 16 divisors (see below), whose sum is σ = 14419629540. Its totient is φ = 3843686400.

The previous prime is 7688920919. The next prime is 7688920949. The reversal of 7688920936 is 6390298867.

It can be written as a sum of positive squares in 2 ways, for example, as 5329876036 + 2359044900 = 73006^2 + 48570^2 .

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, 53401 + ... + 135016.

Almost surely, 2^7688920936 is an apocalyptic number.

It is an amenable number.

7688920936 is a deficient number, since it is larger than the sum of its proper divisors (6730708604).

7688920936 is a wasteful number, since it uses less digits than its factorization.

7688920936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193524 (or 193520 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The square root of 7688920936 is about 87686.4923235044. The cubic root of 7688920936 is about 1973.7332847060.

The spelling of 7688920936 in words is "seven billion, six hundred eighty-eight million, nine hundred twenty thousand, nine hundred thirty-six".