18855453112192 has 16 divisors (see below), whose sum is σ = 37563597997200. Its totient is φ = 9427726556032.

The previous prime is 18855453112183. The next prime is 18855453112193. The reversal of 18855453112192 is 29121135455881.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×18855453112192² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18855453112193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73654113592 + ... + 73654113847.

It is an arithmetic number, because the mean of its divisors is an integer number (2347724874825).

Almost surely, 2^{18855453112192} is an apocalyptic number.

It is an amenable number.

18855453112192 is a deficient number, since it is larger than the sum of its proper divisors (18708144885008).

18855453112192 is an equidigital number, since it uses as much as digits as its factorization.

18855453112192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147308227453 (or 147308227441 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 55.

The spelling of 18855453112192 in words is "eighteen trillion, eight hundred fifty-five billion, four hundred fifty-three million, one hundred twelve thousand, one hundred ninety-two".