39604434872 has 32 divisors (see below), whose sum is σ = 78120990000. Its totient is φ = 18795318528.

The previous prime is 39604434839. The next prime is 39604434887. The reversal of 39604434872 is 27843440693.

It is a super-2 number, since 2×39604434872² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39604434872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432997 + ... + 1460372.

Almost surely, 2^39604434872 is an apocalyptic number.

It is an amenable number.

39604434872 is a deficient number, since it is larger than the sum of its proper divisors (38516555128).

39604434872 is a wasteful number, since it uses less digits than its factorization.

39604434872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893463 (or 2893459 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 39604434872 in words is "thirty-nine billion, six hundred four million, four hundred thirty-four thousand, eight hundred seventy-two".