18265214004 has 12 divisors (see below), whose sum is σ = 42618832704. Its totient is φ = 6088404664.

The previous prime is 18265213999. The next prime is 18265214047. The reversal of 18265214004 is 40041256281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×18265214004² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761050572 + ... + 761050595.

It is an arithmetic number, because the mean of its divisors is an integer number (3551569392).

Almost surely, 2^18265214004 is an apocalyptic number.

It is an amenable number.

18265214004 is an abundant number, since it is smaller than the sum of its proper divisors (24353618700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18265214004 is a wasteful number, since it uses less digits than its factorization.

18265214004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522101174 (or 1522101172 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 18265214004 in words is "eighteen billion, two hundred sixty-five million, two hundred fourteen thousand, four".