18179042107 has 2 divisors, whose sum is σ = 18179042108. Its totient is φ = 18179042106.

The previous prime is 18179042087. The next prime is 18179042143. The reversal of 18179042107 is 70124097181.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18179042107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18179042107.

It is not a weakly prime, because it can be changed into another prime (18179042207) 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 as a sum of consecutive naturals, namely, 9089521053 + 9089521054.

It is an arithmetic number, because the mean of its divisors is an integer number (9089521054).

Almost surely, 2^18179042107 is an apocalyptic number.

18179042107 is a deficient number, since it is larger than the sum of its proper divisors (1).

18179042107 is an equidigital number, since it uses as much as digits as its factorization.

18179042107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 18179042107 in words is "eighteen billion, one hundred seventy-nine million, forty-two thousand, one hundred seven".