18112041775025 has 72 divisors (see below), whose sum is σ = 25639285293216. Its totient is φ = 12586363820800.

The previous prime is 18112041775021. The next prime is 18112041775063. The reversal of 18112041775025 is 52057714021181.

It is not a de Polignac number, because 18112041775025 - 2² = 18112041775021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18112041775021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 138572354 + ... + 138702996.

It is an arithmetic number, because the mean of its divisors is an integer number (356101184628).

Almost surely, 2^{18112041775025} is an apocalyptic number.

It is an amenable number.

18112041775025 is a deficient number, since it is larger than the sum of its proper divisors (7527243518191).

18112041775025 is a wasteful number, since it uses less digits than its factorization.

18112041775025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131663 (or 131635 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 44.

The spelling of 18112041775025 in words is "eighteen trillion, one hundred twelve billion, forty-one million, seven hundred seventy-five thousand, twenty-five".