18358870464 has 336 divisors, whose sum is σ = 59331392640. Its totient is φ = 5380024320.

The previous prime is 18358870463. The next prime is 18358870477. The reversal of 18358870464 is 46407885381.

18358870464 is a `hidden beast` number, since 1 + 8 + 35 + 88 + 70 + 464 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18358870464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18358870463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25045842 + ... + 25046574.

Almost surely, 2^18358870464 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 18358870464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29665696320).

18358870464 is an abundant number, since it is smaller than the sum of its proper divisors (40972522176).

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

18358870464 is a wasteful number, since it uses less digits than its factorization.

18358870464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 18358870464 in words is "eighteen billion, three hundred fifty-eight million, eight hundred seventy thousand, four hundred sixty-four".