18739114939 has 2 divisors, whose sum is σ = 18739114940. Its totient is φ = 18739114938.

The previous prime is 18739114897. The next prime is 18739114981. The reversal of 18739114939 is 93941193781.

It is a balanced prime because it is at equal distance from previous prime (18739114897) and next prime (18739114981).

It is a cyclic number.

It is not a de Polignac number, because 18739114939 - 2¹¹ = 18739112891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18739114939.

It is not a weakly prime, because it can be changed into another prime (18739114039) 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, 9369557469 + 9369557470.

It is an arithmetic number, because the mean of its divisors is an integer number (9369557470).

Almost surely, 2^18739114939 is an apocalyptic number.

18739114939 is a deficient number, since it is larger than the sum of its proper divisors (1).

18739114939 is an equidigital number, since it uses as much as digits as its factorization.

18739114939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 55.

The spelling of 18739114939 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, nine hundred thirty-nine".