18910986345112 has 16 divisors (see below), whose sum is σ = 36039379716000. Its totient is φ = 9300485087520.

The previous prime is 18910986345103. The next prime is 18910986345137. The reversal of 18910986345112 is 21154368901981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19376010112 + ... + 19376011087.

It is an arithmetic number, because the mean of its divisors is an integer number (2252461232250).

Almost surely, 2^{18910986345112} is an apocalyptic number.

It is an amenable number.

18910986345112 is a deficient number, since it is larger than the sum of its proper divisors (17128393370888).

18910986345112 is a wasteful number, since it uses less digits than its factorization.

18910986345112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38752021266 (or 38752021262 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 58.

The spelling of 18910986345112 in words is "eighteen trillion, nine hundred ten billion, nine hundred eighty-six million, three hundred forty-five thousand, one hundred twelve".