18122239174827 has 32 divisors (see below), whose sum is σ = 25478000640000. Its totient is φ = 11426157660960.

The previous prime is 18122239174813. The next prime is 18122239174829. The reversal of 18122239174827 is 72847193222181.

It is not a de Polignac number, because 18122239174827 - 2¹² = 18122239170731 is a prime.

It is a super-3 number, since 3×18122239174827³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (18122239174829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160603174 + ... + 160715972.

It is an arithmetic number, because the mean of its divisors is an integer number (796187520000).

Almost surely, 2^{18122239174827} is an apocalyptic number.

18122239174827 is a deficient number, since it is larger than the sum of its proper divisors (7355761465173).

18122239174827 is a wasteful number, since it uses less digits than its factorization.

18122239174827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117591.

The product of its digits is 5419008, while the sum is 57.

The spelling of 18122239174827 in words is "eighteen trillion, one hundred twenty-two billion, two hundred thirty-nine million, one hundred seventy-four thousand, eight hundred twenty-seven".