18249854976 has 312 divisors, whose sum is σ = 55941908880. Its totient is φ = 5722472448.

The previous prime is 18249854971. The next prime is 18249855059. The reversal of 18249854976 is 67945894281.

18249854976 is a `hidden beast` number, since 1 + 8 + 2 + 498 + 54 + 97 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (18249854971) 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, 45969210 + ... + 45969606.

It is an arithmetic number, because the mean of its divisors is an integer number (179300990).

Almost surely, 2^18249854976 is an apocalyptic number.

18249854976 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 18249854976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27970954440).

18249854976 is an abundant number, since it is smaller than the sum of its proper divisors (37692053904).

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

18249854976 is a wasteful number, since it uses less digits than its factorization.

18249854976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 474 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 18249854976 in words is "eighteen billion, two hundred forty-nine million, eight hundred fifty-four thousand, nine hundred seventy-six".