18785098935684 has 27 divisors (see below), whose sum is σ = 47484621378103. Its totient is φ = 6261690976872.

The previous prime is 18785098935677. The next prime is 18785098935689. The reversal of 18785098935684 is 48653989058781.

The square root of 18785098935684 is 4334178.

It is a perfect power (a square), and thus also a powerful number.

18785098935684 is a `hidden beast` number, since 1 + 8 + 78 + 509 + 8 + 9 + 35 + 6 + 8 + 4 = 666.

It is a super-2 number, since 2×18785098935684² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18785098935689) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25643887 + ... + 26366249.

Almost surely, 2^{18785098935684} is an apocalyptic number.

18785098935684 is the 4334178-th square number.

It is an amenable number.

18785098935684 is an abundant number, since it is smaller than the sum of its proper divisors (28699522442419).

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

18785098935684 is an frugal number, since it uses more digits than its factorization.

18785098935684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444736 (or 722368 counting only the distinct ones).

The product of its (nonzero) digits is 4180377600, while the sum is 81.

The spelling of 18785098935684 in words is "eighteen trillion, seven hundred eighty-five billion, ninety-eight million, nine hundred thirty-five thousand, six hundred eighty-four".