17998830612 has 96 divisors (see below), whose sum is σ = 53354327040. Its totient is φ = 5140164960.

The previous prime is 17998830589. The next prime is 17998830673. The reversal of 17998830612 is 21603889971.

17998830612 is a `hidden beast` number, since 17 + 9 + 9 + 8 + 8 + 3 + 0 + 612 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272363 + ... + 2280269.

It is an arithmetic number, because the mean of its divisors is an integer number (555774240).

Almost surely, 2^17998830612 is an apocalyptic number.

17998830612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17998830612 is an abundant number, since it is smaller than the sum of its proper divisors (35355496428).

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

17998830612 is a wasteful number, since it uses less digits than its factorization.

17998830612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10938 (or 10930 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 17998830612 in words is "seventeen billion, nine hundred ninety-eight million, eight hundred thirty thousand, six hundred twelve".