18872433533056 has 32 divisors (see below), whose sum is σ = 39576238088400. Its totient is φ = 8939573777664.

The previous prime is 18872433533053. The next prime is 18872433533059. The reversal of 18872433533056 is 65033533427881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18872433533053) and next prime (18872433533059).

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (18872433533053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3880020910 + ... + 3880025773.

Almost surely, 2^{18872433533056} is an apocalyptic number.

18872433533056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18872433533056 is an abundant number, since it is smaller than the sum of its proper divisors (20703804555344).

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

18872433533056 is an equidigital number, since it uses as much as digits as its factorization.

18872433533056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760046716 (or 7760046704 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 18872433533056 in words is "eighteen trillion, eight hundred seventy-two billion, four hundred thirty-three million, five hundred thirty-three thousand, fifty-six".