12576637997 has 24 divisors (see below), whose sum is σ = 15989187648. Its totient is φ = 9681851520.

The previous prime is 12576637991. The next prime is 12576637999. The reversal of 12576637997 is 79973667521.

It is not a de Polignac number, because 12576637997 - 2⁶ = 12576637933 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12576637991) 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, 19148 + ... + 159749.

It is an arithmetic number, because the mean of its divisors is an integer number (666216152).

Almost surely, 2^12576637997 is an apocalyptic number.

It is an amenable number.

12576637997 is a deficient number, since it is larger than the sum of its proper divisors (3412549651).

12576637997 is a wasteful number, since it uses less digits than its factorization.

12576637997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179009 (or 178998 counting only the distinct ones).

The product of its digits is 30005640, while the sum is 62.

The spelling of 12576637997 in words is "twelve billion, five hundred seventy-six million, six hundred thirty-seven thousand, nine hundred ninety-seven".