18608099328 has 624 divisors, whose sum is σ = 69464922240. Its totient is φ = 4793499648.

The previous prime is 18608099303. The next prime is 18608099351. The reversal of 18608099328 is 82399080681.

It is a happy number.

18608099328 is a `hidden beast` number, since 1 + 8 + 608 + 0 + 9 + 9 + 3 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (624).

It is a super-2 number, since 2×18608099328² (a number of 21 digits) contains 22 as substring.

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

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, 432746475 + ... + 432746517.

Almost surely, 2^18608099328 is an apocalyptic number.

18608099328 is a gapful number since it is divisible by the number (18) 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 18608099328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34732461120).

18608099328 is an abundant number, since it is smaller than the sum of its proper divisors (50856822912).

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

18608099328 is an equidigital number, since it uses as much as digits as its factorization.

18608099328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 18608099328 in words is "eighteen billion, six hundred eight million, ninety-nine thousand, three hundred twenty-eight".