18490132986712 has 16 divisors (see below), whose sum is σ = 34862680913400. Its totient is φ = 9193418076480.

The previous prime is 18490132986679. The next prime is 18490132986713. The reversal of 18490132986712 is 21768923109481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18490132986713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6456050589 + ... + 6456053452.

Almost surely, 2^{18490132986712} is an apocalyptic number.

It is an amenable number.

18490132986712 is a deficient number, since it is larger than the sum of its proper divisors (16372547926688).

18490132986712 is a wasteful number, since it uses less digits than its factorization.

18490132986712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912104226 (or 12912104222 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 18490132986712 in words is "eighteen trillion, four hundred ninety billion, one hundred thirty-two million, nine hundred eighty-six thousand, seven hundred twelve".