12816898452 has 36 divisors (see below), whose sum is σ = 32403178080. Its totient is φ = 4271652432.

The previous prime is 12816898433. The next prime is 12816898499. The reversal of 12816898452 is 25489861821.

12816898452 is a `hidden beast` number, since 1 + 28 + 168 + 9 + 8 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 254199 + ... + 300417.

It is an arithmetic number, because the mean of its divisors is an integer number (900088280).

Almost surely, 2^12816898452 is an apocalyptic number.

12816898452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12816898452 is an abundant number, since it is smaller than the sum of its proper divisors (19586279628).

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

12816898452 is a wasteful number, since it uses less digits than its factorization.

12816898452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53932 (or 53927 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The spelling of 12816898452 in words is "twelve billion, eight hundred sixteen million, eight hundred ninety-eight thousand, four hundred fifty-two".