18608778822144 has 320 divisors, whose sum is σ = 58233105342720. Its totient is φ = 5170857246720.

The previous prime is 18608778822131. The next prime is 18608778822157. The reversal of 18608778822144 is 44122887780681.

It is an interprime number because it is at equal distance from previous prime (18608778822131) and next prime (18608778822157).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58213212 + ... + 58532004.

It is an arithmetic number, because the mean of its divisors is an integer number (181978454196).

Almost surely, 2^{18608778822144} is an apocalyptic number.

18608778822144 is a gapful number since it is divisible by the number (14) 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 18608778822144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29116552671360).

18608778822144 is an abundant number, since it is smaller than the sum of its proper divisors (39624326520576).

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

18608778822144 is an equidigital number, since it uses as much as digits as its factorization.

18608778822144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318971 (or 318955 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 66.

The spelling of 18608778822144 in words is "eighteen trillion, six hundred eight billion, seven hundred seventy-eight million, eight hundred twenty-two thousand, one hundred forty-four".