12998679012 has 48 divisors (see below), whose sum is σ = 36763944000. Its totient is φ = 3938993280.

The previous prime is 12998679007. The next prime is 12998679041. The reversal of 12998679012 is 21097689921.

It is a super-2 number, since 2×12998679012² (a number of 21 digits) contains 22 as substring.

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 12998679012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5469637 + ... + 5472012.

It is an arithmetic number, because the mean of its divisors is an integer number (765915500).

Almost surely, 2^12998679012 is an apocalyptic number.

12998679012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12998679012 is an abundant number, since it is smaller than the sum of its proper divisors (23765264988).

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

12998679012 is a wasteful number, since it uses less digits than its factorization.

12998679012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10941673 (or 10941665 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 12998679012 in words is "twelve billion, nine hundred ninety-eight million, six hundred seventy-nine thousand, twelve".