18342831056 has 40 divisors (see below), whose sum is σ = 39501605664. Its totient is φ = 8180332160.

The previous prime is 18342831011. The next prime is 18342831077. The reversal of 18342831056 is 65013824381.

It is a super-2 number, since 2×18342831056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973886 + ... + 992541.

Almost surely, 2^18342831056 is an apocalyptic number.

18342831056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18342831056 is an abundant number, since it is smaller than the sum of its proper divisors (21158774608).

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

18342831056 is a wasteful number, since it uses less digits than its factorization.

18342831056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966499 (or 1966493 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 18342831056 in words is "eighteen billion, three hundred forty-two million, eight hundred thirty-one thousand, fifty-six".