18453089280 has 264 divisors, whose sum is σ = 62712186768. Its totient is φ = 4630249472.

The previous prime is 18453089257. The next prime is 18453089323. The reversal of 18453089280 is 8298035481.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4436962 + ... + 4441118.

It is an arithmetic number, because the mean of its divisors is an integer number (237546162).

Almost surely, 2^18453089280 is an apocalyptic number.

18453089280 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 18453089280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31356093384).

18453089280 is an abundant number, since it is smaller than the sum of its proper divisors (44259097488).

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

18453089280 is a wasteful number, since it uses less digits than its factorization.

18453089280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 18453089280 in words is "eighteen billion, four hundred fifty-three million, eighty-nine thousand, two hundred eighty".