1998832367232 has 64 divisors (see below), whose sum is σ = 5899331649600. Its totient is φ = 666277454592.

The previous prime is 1998832367221. The next prime is 1998832367261. The reversal of 1998832367232 is 2327632388991.

1998832367232 is a `hidden beast` number, since 1 + 9 + 9 + 8 + 8 + 32 + 367 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1998832367232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289179468 + ... + 289186379.

It is an arithmetic number, because the mean of its divisors is an integer number (92177057025).

Almost surely, 2^{1998832367232} is an apocalyptic number.

1998832367232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1998832367232 is an abundant number, since it is smaller than the sum of its proper divisors (3900499282368).

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

1998832367232 is an equidigital number, since it uses as much as digits as its factorization.

1998832367232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578365870 (or 578365852 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 1998832367232 in words is "one trillion, nine hundred ninety-eight billion, eight hundred thirty-two million, three hundred sixty-seven thousand, two hundred thirty-two".