18233022775 has 48 divisors (see below), whose sum is σ = 25564363776. Its totient is φ = 12780000000.

The previous prime is 18233022757. The next prime is 18233022809. The reversal of 18233022775 is 57722033281.

It is a de Polignac number, because none of the positive numbers 2^k-18233022775 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2135515 + ... + 2144035.

It is an arithmetic number, because the mean of its divisors is an integer number (532590912).

Almost surely, 2^18233022775 is an apocalyptic number.

18233022775 is a deficient number, since it is larger than the sum of its proper divisors (7331341001).

18233022775 is a wasteful number, since it uses less digits than its factorization.

18233022775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824 (or 8819 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 18233022775 in words is "eighteen billion, two hundred thirty-three million, twenty-two thousand, seven hundred seventy-five".