39922640896 has 48 divisors (see below), whose sum is σ = 79862328000. Its totient is φ = 19952185344.

The previous prime is 39922640869. The next prime is 39922640899. The reversal of 39922640896 is 69804622993.

It is a super-2 number, since 2×39922640896² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39922640896.

It is not an unprimeable number, because it can be changed into a prime (39922640899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7826955 + ... + 7832053.

It is an arithmetic number, because the mean of its divisors is an integer number (1663798500).

Almost surely, 2^39922640896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39922640896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39931164000).

39922640896 is an abundant number, since it is smaller than the sum of its proper divisors (39939687104).

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

39922640896 is an equidigital number, since it uses as much as digits as its factorization.

39922640896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944 (or 8924 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 58.

The spelling of 39922640896 in words is "thirty-nine billion, nine hundred twenty-two million, six hundred forty thousand, eight hundred ninety-six".