18290748456 has 256 divisors, whose sum is σ = 54250560000. Its totient is φ = 5699635200.

The previous prime is 18290748431. The next prime is 18290748457. The reversal of 18290748456 is 65484709281.

It is a happy number.

18290748456 is a `hidden beast` number, since 182 + 9 + 0 + 7 + 4 + 8 + 456 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18290748457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58812541 + ... + 58812851.

It is an arithmetic number, because the mean of its divisors is an integer number (211916250).

Almost surely, 2^18290748456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18290748456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27125280000).

18290748456 is an abundant number, since it is smaller than the sum of its proper divisors (35959811544).

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

18290748456 is a wasteful number, since it uses less digits than its factorization.

18290748456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 18290748456 in words is "eighteen billion, two hundred ninety million, seven hundred forty-eight thousand, four hundred fifty-six".