18265907375992 has 8 divisors (see below), whose sum is σ = 34248576330000. Its totient is φ = 9132953687992.

The previous prime is 18265907375987. The next prime is 18265907376049. The reversal of 18265907375992 is 29957370956281.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1141619210992 + ... + 1141619211007.

It is an arithmetic number, because the mean of its divisors is an integer number (4281072041250).

Almost surely, 2^{18265907375992} is an apocalyptic number.

It is an amenable number.

18265907375992 is a deficient number, since it is larger than the sum of its proper divisors (15982668954008).

18265907375992 is a wasteful number, since it uses less digits than its factorization.

18265907375992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283238422005 (or 2283238422001 counting only the distinct ones).

The product of its (nonzero) digits is 514382400, while the sum is 73.

The spelling of 18265907375992 in words is "eighteen trillion, two hundred sixty-five billion, nine hundred seven million, three hundred seventy-five thousand, nine hundred ninety-two".