18494212976344 has 64 divisors (see below), whose sum is σ = 40381395056640. Its totient is φ = 7775927203200.

The previous prime is 18494212976279. The next prime is 18494212976381. The reversal of 18494212976344 is 44367921249481.

It is a super-2 number, since 2×18494212976344² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38293569 + ... + 38773519.

It is an arithmetic number, because the mean of its divisors is an integer number (630959297760).

Almost surely, 2^{18494212976344} is an apocalyptic number.

18494212976344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18494212976344 is an abundant number, since it is smaller than the sum of its proper divisors (21887182080296).

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

18494212976344 is a wasteful number, since it uses less digits than its factorization.

18494212976344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493000 (or 492996 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 64.

The spelling of 18494212976344 in words is "eighteen trillion, four hundred ninety-four billion, two hundred twelve million, nine hundred seventy-six thousand, three hundred forty-four".