18253136896 has 44 divisors (see below), whose sum is σ = 36928240272. Its totient is φ = 9016567808.

The previous prime is 18253136887. The next prime is 18253136897. The reversal of 18253136896 is 69863135281.

It is not an unprimeable number, because it can be changed into a prime (18253136897) 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, 22390 + ... + 192373.

It is an arithmetic number, because the mean of its divisors is an integer number (839278188).

Almost surely, 2^18253136896 is an apocalyptic number.

18253136896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18253136896 is an abundant number, since it is smaller than the sum of its proper divisors (18675103376).

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

18253136896 is an equidigital number, since it uses as much as digits as its factorization.

18253136896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214866 (or 214848 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The spelling of 18253136896 in words is "eighteen billion, two hundred fifty-three million, one hundred thirty-six thousand, eight hundred ninety-six".