18895054464 has 768 divisors, whose sum is σ = 70154294400. Its totient is φ = 4945674240.

The previous prime is 18895054411. The next prime is 18895054597. The reversal of 18895054464 is 46445059881.

18895054464 is a `hidden beast` number, since 1 + 8 + 8 + 95 + 0 + 544 + 6 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18895054464.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 109219882 + ... + 109220054.

Almost surely, 2^18895054464 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 18895054464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35077147200).

18895054464 is an abundant number, since it is smaller than the sum of its proper divisors (51259239936).

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

18895054464 is a wasteful number, since it uses less digits than its factorization.

18895054464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 18895054464 in words is "eighteen billion, eight hundred ninety-five million, fifty-four thousand, four hundred sixty-four".