18169814488954 has 4 divisors (see below), whose sum is σ = 27254721733434. Its totient is φ = 9084907244476.

The previous prime is 18169814488937. The next prime is 18169814488981. The reversal of 18169814488954 is 45988441896181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12173658311929 + 5996156177025 = 3489077^2 + 2448705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4542453622237 + ... + 4542453622240.

Almost surely, 2^{18169814488954} is an apocalyptic number.

18169814488954 is a deficient number, since it is larger than the sum of its proper divisors (9084907244480).

18169814488954 is an equidigital number, since it uses as much as digits as its factorization.

18169814488954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084907244479.

The product of its digits is 637009920, while the sum is 76.

The spelling of 18169814488954 in words is "eighteen trillion, one hundred sixty-nine billion, eight hundred fourteen million, four hundred eighty-eight thousand, nine hundred fifty-four".