39951957912 has 16 divisors (see below), whose sum is σ = 99879894840. Its totient is φ = 13317319296.

The previous prime is 39951957841. The next prime is 39951957979. The reversal of 39951957912 is 21975915993.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832332433 + ... + 832332480.

Almost surely, 2^39951957912 is an apocalyptic number.

It is an amenable number.

39951957912 is an abundant number, since it is smaller than the sum of its proper divisors (59927936928).

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

39951957912 is a wasteful number, since it uses less digits than its factorization.

39951957912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664664922 (or 1664664918 counting only the distinct ones).

The product of its digits is 6889050, while the sum is 60.

The spelling of 39951957912 in words is "thirty-nine billion, nine hundred fifty-one million, nine hundred fifty-seven thousand, nine hundred twelve".