12898626336 has 72 divisors (see below), whose sum is σ = 36695737260. Its totient is φ = 4297752576.

The previous prime is 12898626319. The next prime is 12898626353. The reversal of 12898626336 is 63362689821.

12898626336 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 8 + 626 + 3 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (12898626319) and next prime (12898626353).

It can be written as a sum of positive squares in 2 ways, for example, as 11372942736 + 1525683600 = 106644^2 + 39060^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×12898626336² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808000 + ... + 823808.

Almost surely, 2^12898626336 is an apocalyptic number.

12898626336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12898626336 is an abundant number, since it is smaller than the sum of its proper divisors (23797110924).

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

12898626336 is a wasteful number, since it uses less digits than its factorization.

12898626336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18658 (or 18647 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 12898626336 in words is "twelve billion, eight hundred ninety-eight million, six hundred twenty-six thousand, three hundred thirty-six".