39986994508 has 6 divisors (see below), whose sum is σ = 69977240396. Its totient is φ = 19993497252.

The previous prime is 39986994479. The next prime is 39986994539. The reversal of 39986994508 is 80549968993.

39986994508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998374310 + ... + 4998374317.

Almost surely, 2^39986994508 is an apocalyptic number.

It is an amenable number.

39986994508 is a deficient number, since it is larger than the sum of its proper divisors (29990245888).

39986994508 is a wasteful number, since it uses less digits than its factorization.

39986994508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996748631 (or 9996748629 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 70.

The spelling of 39986994508 in words is "thirty-nine billion, nine hundred eighty-six million, nine hundred ninety-four thousand, five hundred eight".