18265042432 has 120 divisors (see below), whose sum is σ = 45719089416. Its totient is φ = 7225602048.

The previous prime is 18265042429. The next prime is 18265042441. The reversal of 18265042432 is 23424056281.

It is a super-2 number, since 2×18265042432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18265042391 and 18265042400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298143 + ... + 354145.

Almost surely, 2^18265042432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18265042432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22859544708).

18265042432 is an abundant number, since it is smaller than the sum of its proper divisors (27454046984).

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

18265042432 is an equidigital number, since it uses as much as digits as its factorization.

18265042432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56048 (or 56025 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 18265042432 in words is "eighteen billion, two hundred sixty-five million, forty-two thousand, four hundred thirty-two".