18814735779841 has 4 divisors (see below), whose sum is σ = 18815004374832. Its totient is φ = 18814467184852.

The previous prime is 18814735779769. The next prime is 18814735779863. The reversal of 18814735779841 is 14897753741881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18814735779841 - 2¹⁹ = 18814735255553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18814735779341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134192395 + ... + 134332528.

It is an arithmetic number, because the mean of its divisors is an integer number (4703751093708).

Almost surely, 2^{18814735779841} is an apocalyptic number.

It is an amenable number.

18814735779841 is a deficient number, since it is larger than the sum of its proper divisors (268594991).

18814735779841 is an equidigital number, since it uses as much as digits as its factorization.

18814735779841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268594990.

The product of its digits is 379330560, while the sum is 73.

The spelling of 18814735779841 in words is "eighteen trillion, eight hundred fourteen billion, seven hundred thirty-five million, seven hundred seventy-nine thousand, eight hundred forty-one".