7902139692 has 48 divisors (see below), whose sum is σ = 19118661632. Its totient is φ = 2537619840.

The previous prime is 7902139643. The next prime is 7902139727. The reversal of 7902139692 is 2969312097.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35328 + ... + 130584.

Almost surely, 2^7902139692 is an apocalyptic number.

It is an amenable number.

7902139692 is an abundant number, since it is smaller than the sum of its proper divisors (11216521940).

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

7902139692 is a wasteful number, since it uses less digits than its factorization.

7902139692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95518 (or 95516 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 7902139692 is about 88893.9800661440. The cubic root of 7902139692 is about 1991.8114942747.

The spelling of 7902139692 in words is "seven billion, nine hundred two million, one hundred thirty-nine thousand, six hundred ninety-two".