18280996496 has 80 divisors (see below), whose sum is σ = 40775961600. Its totient is φ = 7777503360.

The previous prime is 18280996493. The next prime is 18280996499. The reversal of 18280996496 is 69469908281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18280996493) and next prime (18280996499).

It is not an unprimeable number, because it can be changed into a prime (18280996493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15400415 + ... + 15401601.

It is an arithmetic number, because the mean of its divisors is an integer number (509699520).

Almost surely, 2^18280996496 is an apocalyptic number.

18280996496 is a gapful number since it is divisible by the number (16) 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 18280996496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20387980800).

18280996496 is an abundant number, since it is smaller than the sum of its proper divisors (22494965104).

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

18280996496 is a wasteful number, since it uses less digits than its factorization.

18280996496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 18280996496 in words is "eighteen billion, two hundred eighty million, nine hundred ninety-six thousand, four hundred ninety-six".