12275352621918 has 24 divisors (see below), whose sum is σ = 26734403558928. Its totient is φ = 4070583251712.

The previous prime is 12275352621893. The next prime is 12275352621971. The reversal of 12275352621918 is 81912625357221.

12275352621918 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 5 + 3 + 5 + 2 + 621 + 9 + 1 + 8 = 666.

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, 1766742730 + ... + 1766749677.

It is an arithmetic number, because the mean of its divisors is an integer number (1113933481622).

Almost surely, 2^{12275352621918} is an apocalyptic number.

12275352621918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12275352621918 is an abundant number, since it is smaller than the sum of its proper divisors (14459050937010).

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

12275352621918 is a wasteful number, since it uses less digits than its factorization.

12275352621918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533492608 (or 3533492605 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 12275352621918 in words is "twelve trillion, two hundred seventy-five billion, three hundred fifty-two million, six hundred twenty-one thousand, nine hundred eighteen".