18256341775 has 24 divisors (see below), whose sum is σ = 26183574144. Its totient is φ = 12367797600.

The previous prime is 18256341743. The next prime is 18256341823. The reversal of 18256341775 is 57714365281.

It is not a de Polignac number, because 18256341775 - 2⁵ = 18256341743 is a prime.

It is a super-2 number, since 2×18256341775² (a number of 21 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 23 ways as a sum of consecutive naturals, for example, 613921 + ... + 642970.

It is an arithmetic number, because the mean of its divisors is an integer number (1090982256).

Almost surely, 2^18256341775 is an apocalyptic number.

18256341775 is a deficient number, since it is larger than the sum of its proper divisors (7927232369).

18256341775 is a wasteful number, since it uses less digits than its factorization.

18256341775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256991 (or 1256986 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The spelling of 18256341775 in words is "eighteen billion, two hundred fifty-six million, three hundred forty-one thousand, seven hundred seventy-five".