39924642957 has 8 divisors (see below), whose sum is σ = 53235669120. Its totient is φ = 26615022720.

The previous prime is 39924642937. The next prime is 39924642997. The reversal of 39924642957 is 75924642993.

39924642957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39924642957 - 2¹¹ = 39924640909 is a prime.

It is a super-3 number, since 3×39924642957³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39924642957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39924642907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283332 + ... + 400157.

It is an arithmetic number, because the mean of its divisors is an integer number (6654458640).

Almost surely, 2^39924642957 is an apocalyptic number.

It is an amenable number.

39924642957 is a deficient number, since it is larger than the sum of its proper divisors (13311026163).

39924642957 is a wasteful number, since it uses less digits than its factorization.

39924642957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702963.

The product of its digits is 29393280, while the sum is 60.

The spelling of 39924642957 in words is "thirty-nine billion, nine hundred twenty-four million, six hundred forty-two thousand, nine hundred fifty-seven".