12698921556324 has 96 divisors (see below), whose sum is σ = 34544375873280. Its totient is φ = 4026561580800.

The previous prime is 12698921556317. The next prime is 12698921556383. The reversal of 12698921556324 is 42365512989621.

12698921556324 is a `hidden beast` number, since 1 + 2 + 6 + 98 + 9 + 215 + 5 + 6 + 324 = 666.

12698921556324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12698921556324² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13672737 + ... + 14571944.

It is an arithmetic number, because the mean of its divisors is an integer number (359837248680).

Almost surely, 2^{12698921556324} is an apocalyptic number.

It is an amenable number.

12698921556324 is an abundant number, since it is smaller than the sum of its proper divisors (21845454316956).

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

12698921556324 is a wasteful number, since it uses less digits than its factorization.

12698921556324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28244898 (or 28244890 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 12698921556324 in words is "twelve trillion, six hundred ninety-eight billion, nine hundred twenty-one million, five hundred fifty-six thousand, three hundred twenty-four".