18235212324 has 48 divisors (see below), whose sum is σ = 48634954368. Its totient is φ = 5209233408.

The previous prime is 18235212319. The next prime is 18235212353. The reversal of 18235212324 is 42321253281.

It is a super-2 number, since 2×18235212324² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683524 + ... + 709700.

It is an arithmetic number, because the mean of its divisors is an integer number (1013228216).

Almost surely, 2^18235212324 is an apocalyptic number.

18235212324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18235212324 is an abundant number, since it is smaller than the sum of its proper divisors (30399742044).

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

18235212324 is a wasteful number, since it uses less digits than its factorization.

18235212324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34484 (or 34482 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The spelling of 18235212324 in words is "eighteen billion, two hundred thirty-five million, two hundred twelve thousand, three hundred twenty-four".