12615750198 has 12 divisors (see below), whose sum is σ = 27334125468. Its totient is φ = 4205250060.

The previous prime is 12615750181. The next prime is 12615750209. The reversal of 12615750198 is 89105751621.

12615750198 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 57 + 501 + 98 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350437488 + ... + 350437523.

It is an arithmetic number, because the mean of its divisors is an integer number (2277843789).

Almost surely, 2^12615750198 is an apocalyptic number.

12615750198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12615750198 is an abundant number, since it is smaller than the sum of its proper divisors (14718375270).

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

12615750198 is a wasteful number, since it uses less digits than its factorization.

12615750198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700875019 (or 700875016 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 12615750198 in words is "twelve billion, six hundred fifteen million, seven hundred fifty thousand, one hundred ninety-eight".