18264926880 has 144 divisors (see below), whose sum is σ = 63080428320. Its totient is φ = 4811933184.

The previous prime is 18264926851. The next prime is 18264926881. The reversal of 18264926880 is 8862946281.

18264926880 is a `hidden beast` number, since 18 + 2 + 6 + 492 + 68 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (18264926881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43111 + ... + 195929.

It is an arithmetic number, because the mean of its divisors is an integer number (438058530).

Almost surely, 2^18264926880 is an apocalyptic number.

18264926880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18264926880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31540214160).

18264926880 is an abundant number, since it is smaller than the sum of its proper divisors (44815501440).

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

18264926880 is a wasteful number, since it uses less digits than its factorization.

18264926880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152923 (or 152912 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 18264926880 in words is "eighteen billion, two hundred sixty-four million, nine hundred twenty-six thousand, eight hundred eighty".