18810372079 has 2 divisors, whose sum is σ = 18810372080. Its totient is φ = 18810372078.

The previous prime is 18810372073. The next prime is 18810372121. The reversal of 18810372079 is 97027301881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18810372079 - 2¹⁷ = 18810241007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18810372073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9405186039 + 9405186040.

It is an arithmetic number, because the mean of its divisors is an integer number (9405186040).

Almost surely, 2^18810372079 is an apocalyptic number.

18810372079 is a deficient number, since it is larger than the sum of its proper divisors (1).

18810372079 is an equidigital number, since it uses as much as digits as its factorization.

18810372079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 18810372079 in words is "eighteen billion, eight hundred ten million, three hundred seventy-two thousand, seventy-nine".