18025362973912 has 24 divisors (see below), whose sum is σ = 39315523834260. Its totient is φ = 7725155560080.

The previous prime is 18025362973837. The next prime is 18025362973979. The reversal of 18025362973912 is 21937926352081.

It is a happy number.

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, 22991534014 + ... + 22991534797.

Almost surely, 2^{18025362973912} is an apocalyptic number.

It is an amenable number.

18025362973912 is an abundant number, since it is smaller than the sum of its proper divisors (21290160860348).

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

18025362973912 is a wasteful number, since it uses less digits than its factorization.

18025362973912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45983068831 (or 45983068820 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 18025362973912 in words is "eighteen trillion, twenty-five billion, three hundred sixty-two million, nine hundred seventy-three thousand, nine hundred twelve".