18228300768 has 72 divisors (see below), whose sum is σ = 54090520848. Its totient is φ = 5811919872.

The previous prime is 18228300733. The next prime is 18228300781. The reversal of 18228300768 is 86700382281.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 1369305 + ... + 1382552.

It is an arithmetic number, because the mean of its divisors is an integer number (751257234).

Almost surely, 2^18228300768 is an apocalyptic number.

18228300768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18228300768 is an abundant number, since it is smaller than the sum of its proper divisors (35862220080).

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

18228300768 is a wasteful number, since it uses less digits than its factorization.

18228300768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751896 (or 2751885 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 18228300768 in words is "eighteen billion, two hundred twenty-eight million, three hundred thousand, seven hundred sixty-eight".