39422640885 has 16 divisors (see below), whose sum is σ = 63106585920. Its totient is φ = 21015288320.

The previous prime is 39422640863. The next prime is 39422640913. The reversal of 39422640885 is 58804622493.

It is a happy number.

It is not a de Polignac number, because 39422640885 - 2⁵ = 39422640853 is a prime.

It is a super-2 number, since 2×39422640885² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600255 + ... + 662684.

It is an arithmetic number, because the mean of its divisors is an integer number (3944161620).

Almost surely, 2^39422640885 is an apocalyptic number.

It is an amenable number.

39422640885 is a deficient number, since it is larger than the sum of its proper divisors (23683945035).

39422640885 is a wasteful number, since it uses less digits than its factorization.

39422640885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265028.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 39422640885 in words is "thirty-nine billion, four hundred twenty-two million, six hundred forty thousand, eight hundred eighty-five".