12597339564 has 24 divisors (see below), whose sum is σ = 32659769520. Its totient is φ = 4199113152.

The previous prime is 12597339539. The next prime is 12597339581. The reversal of 12597339564 is 46593379521.

12597339564 is a `hidden beast` number, since 1 + 2 + 5 + 9 + 73 + 3 + 9 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 12597339564.

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 7 ways as a sum of consecutive naturals, for example, 58320909 + ... + 58321124.

It is an arithmetic number, because the mean of its divisors is an integer number (1360823730).

Almost surely, 2^12597339564 is an apocalyptic number.

It is an amenable number.

12597339564 is an abundant number, since it is smaller than the sum of its proper divisors (20062429956).

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

12597339564 is a wasteful number, since it uses less digits than its factorization.

12597339564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116642046 (or 116642038 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The spelling of 12597339564 in words is "twelve billion, five hundred ninety-seven million, three hundred thirty-nine thousand, five hundred sixty-four".