18004310688 has 288 divisors, whose sum is σ = 59513154624. Its totient is φ = 4723826688.

The previous prime is 18004310669. The next prime is 18004310707. The reversal of 18004310688 is 88601340081.

It is an interprime number because it is at equal distance from previous prime (18004310669) and next prime (18004310707).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13880856 + ... + 13882152.

It is an arithmetic number, because the mean of its divisors is an integer number (206642898).

Almost surely, 2^18004310688 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 18004310688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29756577312).

18004310688 is an abundant number, since it is smaller than the sum of its proper divisors (41508843936).

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

18004310688 is a wasteful number, since it uses less digits than its factorization.

18004310688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 18004310688 in words is "eighteen billion, four million, three hundred ten thousand, six hundred eighty-eight".