18461996821760 has 36 divisors (see below), whose sum is σ = 44222251765188. Its totient is φ = 7384798728192.

The previous prime is 18461996821753. The next prime is 18461996821787. The reversal of 18461996821760 is 6712869916481.

It can be written as a sum of positive squares in 2 ways, for example, as 7731602891776 + 10730393929984 = 2780576^2 + 3275728^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7211716229 + ... + 7211718788.

Almost surely, 2^{18461996821760} is an apocalyptic number.

18461996821760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18461996821760 is an abundant number, since it is smaller than the sum of its proper divisors (25760254943428).

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

18461996821760 is an equidigital number, since it uses as much as digits as its factorization.

18461996821760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423435038 (or 14423435024 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 68.

The spelling of 18461996821760 in words is "eighteen trillion, four hundred sixty-one billion, nine hundred ninety-six million, eight hundred twenty-one thousand, seven hundred sixty".