39972285726 has 16 divisors (see below), whose sum is σ = 80481114000. Its totient is φ = 13234671488.

The previous prime is 39972285721. The next prime is 39972285781. The reversal of 39972285726 is 62758227993.

It is a self number, because there is not a number n which added to its sum of digits gives 39972285726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39972285721) by changing a digit.

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, 22354971 + ... + 22356758.

It is an arithmetic number, because the mean of its divisors is an integer number (5030069625).

Almost surely, 2^39972285726 is an apocalyptic number.

39972285726 is an abundant number, since it is smaller than the sum of its proper divisors (40508828274).

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

39972285726 is a wasteful number, since it uses less digits than its factorization.

39972285726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44711883.

The product of its digits is 22861440, while the sum is 60.

The spelling of 39972285726 in words is "thirty-nine billion, nine hundred seventy-two million, two hundred eighty-five thousand, seven hundred twenty-six".