18796844779 has 2 divisors, whose sum is σ = 18796844780. Its totient is φ = 18796844778.

The previous prime is 18796844777. The next prime is 18796844867. The reversal of 18796844779 is 97744869781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18796844779 - 2¹ = 18796844777 is a prime.

Together with 18796844777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (18796844777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398422389 + 9398422390.

It is an arithmetic number, because the mean of its divisors is an integer number (9398422390).

Almost surely, 2^18796844779 is an apocalyptic number.

18796844779 is a deficient number, since it is larger than the sum of its proper divisors (1).

18796844779 is an equidigital number, since it uses as much as digits as its factorization.

18796844779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170698752, while the sum is 70.

The spelling of 18796844779 in words is "eighteen billion, seven hundred ninety-six million, eight hundred forty-four thousand, seven hundred seventy-nine".