39385642672 has 10 divisors (see below), whose sum is σ = 76309682708. Its totient is φ = 19692821328.

The previous prime is 39385642627. The next prime is 39385642787. The reversal of 39385642672 is 27624658393.

It is a super-4 number, since 4×39385642672⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1230801318 + ... + 1230801349.

Almost surely, 2^39385642672 is an apocalyptic number.

It is an amenable number.

39385642672 is a deficient number, since it is larger than the sum of its proper divisors (36924040036).

39385642672 is a wasteful number, since it uses less digits than its factorization.

39385642672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461602675 (or 2461602669 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 39385642672 in words is "thirty-nine billion, three hundred eighty-five million, six hundred forty-two thousand, six hundred seventy-two".