39972959526 has 32 divisors (see below), whose sum is σ = 84426935040. Its totient is φ = 12591443744.

The previous prime is 39972959497. The next prime is 39972959531. The reversal of 39972959526 is 62595927993.

39972959526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1733481 + ... + 1756388.

It is an arithmetic number, because the mean of its divisors is an integer number (2638341720).

Almost surely, 2^39972959526 is an apocalyptic number.

39972959526 is an abundant number, since it is smaller than the sum of its proper divisors (44453975514).

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

39972959526 is a wasteful number, since it uses less digits than its factorization.

39972959526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489980.

The product of its digits is 82668600, while the sum is 66.

The spelling of 39972959526 in words is "thirty-nine billion, nine hundred seventy-two million, nine hundred fifty-nine thousand, five hundred twenty-six".