18266779618411 has 8 divisors (see below), whose sum is σ = 18896716447200. Its totient is φ = 17636845981440.

The previous prime is 18266779618369. The next prime is 18266779618421. The reversal of 18266779618411 is 11481697766281.

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 18266779618411 - 2¹⁵ = 18266779585643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18266779618421) by changing a digit.

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, 20305210 + ... + 21185728.

It is an arithmetic number, because the mean of its divisors is an integer number (2362089555900).

Almost surely, 2^{18266779618411} is an apocalyptic number.

18266779618411 is a deficient number, since it is larger than the sum of its proper divisors (629936828789).

18266779618411 is an equidigital number, since it uses as much as digits as its factorization.

18266779618411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595909.

The product of its digits is 48771072, while the sum is 67.

The spelling of 18266779618411 in words is "eighteen trillion, two hundred sixty-six billion, seven hundred seventy-nine million, six hundred eighteen thousand, four hundred eleven".