12697628879 has 8 divisors (see below), whose sum is σ = 13677974352. Its totient is φ = 11717798400.

The previous prime is 12697628873. The next prime is 12697628887. The reversal of 12697628879 is 97882679621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12697628879 - 2⁸ = 12697628623 is a prime.

It is a super-2 number, since 2×12697628879² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697628873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76754 + ... + 176879.

It is an arithmetic number, because the mean of its divisors is an integer number (1709746794).

Almost surely, 2^12697628879 is an apocalyptic number.

12697628879 is a deficient number, since it is larger than the sum of its proper divisors (980345473).

12697628879 is a wasteful number, since it uses less digits than its factorization.

12697628879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257497.

The product of its digits is 36578304, while the sum is 65.

The spelling of 12697628879 in words is "twelve billion, six hundred ninety-seven million, six hundred twenty-eight thousand, eight hundred seventy-nine".