18498754560 has 384 divisors, whose sum is σ = 69544500480. Its totient is φ = 4138598400.

The previous prime is 18498754553. The next prime is 18498754583. The reversal of 18498754560 is 6545789481.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×18498754560² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18498754560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4390855 + ... + 4395065.

It is an arithmetic number, because the mean of its divisors is an integer number (181105470).

Almost surely, 2^18498754560 is an apocalyptic number.

18498754560 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 18498754560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34772250240).

18498754560 is an abundant number, since it is smaller than the sum of its proper divisors (51045745920).

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

18498754560 is a wasteful number, since it uses less digits than its factorization.

18498754560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 18498754560 in words is "eighteen billion, four hundred ninety-eight million, seven hundred fifty-four thousand, five hundred sixty".