39979361121 has 24 divisors (see below), whose sum is σ = 62017623360. Its totient is φ = 22842100512.

The previous prime is 39979361077. The next prime is 39979361167. The reversal of 39979361121 is 12116397993.

39979361121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39979361121 - 2¹⁵ = 39979328353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39979361171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1343415 + ... + 1372851.

It is an arithmetic number, because the mean of its divisors is an integer number (2584067640).

Almost surely, 2^39979361121 is an apocalyptic number.

It is an amenable number.

39979361121 is a deficient number, since it is larger than the sum of its proper divisors (22038262239).

39979361121 is a wasteful number, since it uses less digits than its factorization.

39979361121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38693 (or 38686 counting only the distinct ones).

The product of its digits is 551124, while the sum is 51.

The spelling of 39979361121 in words is "thirty-nine billion, nine hundred seventy-nine million, three hundred sixty-one thousand, one hundred twenty-one".