39157716388 has 12 divisors (see below), whose sum is σ = 78315432832. Its totient is φ = 16781878440.

The previous prime is 39157716337. The next prime is 39157716401. The reversal of 39157716388 is 88361775193.

39157716388 is an admirable number.

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, 699244908 + ... + 699244963.

Almost surely, 2^39157716388 is an apocalyptic number.

It is an amenable number.

39157716388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39157716388 is a wasteful number, since it uses less digits than its factorization.

39157716388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398489882 (or 1398489880 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The spelling of 39157716388 in words is "thirty-nine billion, one hundred fifty-seven million, seven hundred sixteen thousand, three hundred eighty-eight".