18728682111055 has 8 divisors (see below), whose sum is σ = 25685049752352. Its totient is φ = 12842524876128.

The previous prime is 18728682111001. The next prime is 18728682111091. The reversal of 18728682111055 is 55011128682781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18728682111055 - 2⁹ = 18728682110543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18728682110987 and 18728682111005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267552601552 + ... + 267552601621.

It is an arithmetic number, because the mean of its divisors is an integer number (3210631219044).

Almost surely, 2^{18728682111055} is an apocalyptic number.

18728682111055 is a deficient number, since it is larger than the sum of its proper divisors (6956367641297).

18728682111055 is an equidigital number, since it uses as much as digits as its factorization.

18728682111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535105203185.

The product of its (nonzero) digits is 2150400, while the sum is 55.

The spelling of 18728682111055 in words is "eighteen trillion, seven hundred twenty-eight billion, six hundred eighty-two million, one hundred eleven thousand, fifty-five".