18401185116792 has 32 divisors (see below), whose sum is σ = 51114403102800. Its totient is φ = 6133728372192.

The previous prime is 18401185116779. The next prime is 18401185116799. The reversal of 18401185116792 is 29761158110481.

18401185116792 is a `hidden beast` number, since 1 + 8 + 4 + 0 + 118 + 511 + 6 + 7 + 9 + 2 = 666.

It is a super-4 number, since 4×18401185116792⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18401185116799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42595335703 + ... + 42595336134.

Almost surely, 2^{18401185116792} is an apocalyptic number.

18401185116792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18401185116792 is an abundant number, since it is smaller than the sum of its proper divisors (32713217986008).

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

18401185116792 is a wasteful number, since it uses less digits than its factorization.

18401185116792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85190671852 (or 85190671842 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 54.

The spelling of 18401185116792 in words is "eighteen trillion, four hundred one billion, one hundred eighty-five million, one hundred sixteen thousand, seven hundred ninety-two".