39924642956 has 24 divisors (see below), whose sum is σ = 76254556224. Its totient is φ = 18139283280.

The previous prime is 39924642937. The next prime is 39924642997. The reversal of 39924642956 is 65924642993.

It is a junction number, because it is equal to n+sod(n) for n = 39924642895 and 39924642904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109010 + ... + 302873.

It is an arithmetic number, because the mean of its divisors is an integer number (3177273176).

Almost surely, 2^39924642956 is an apocalyptic number.

It is an amenable number.

39924642956 is a deficient number, since it is larger than the sum of its proper divisors (36329913268).

39924642956 is a wasteful number, since it uses less digits than its factorization.

39924642956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414101 (or 414099 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 59.

The spelling of 39924642956 in words is "thirty-nine billion, nine hundred twenty-four million, six hundred forty-two thousand, nine hundred fifty-six".