12864679509682 has 128 divisors (see below), whose sum is σ = 26271378782208. Its totient is φ = 4562033011200.

The previous prime is 12864679509667. The next prime is 12864679509739. The reversal of 12864679509682 is 28690597646821.

It is a super-2 number, since 2×12864679509682² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 658670257 + ... + 658689787.

It is an arithmetic number, because the mean of its divisors is an integer number (205245146736).

Almost surely, 2^{12864679509682} is an apocalyptic number.

12864679509682 is an abundant number, since it is smaller than the sum of its proper divisors (13406699272526).

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

12864679509682 is a wasteful number, since it uses less digits than its factorization.

12864679509682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24144.

The product of its (nonzero) digits is 627056640, while the sum is 73.

The spelling of 12864679509682 in words is "twelve trillion, eight hundred sixty-four billion, six hundred seventy-nine million, five hundred nine thousand, six hundred eighty-two".