18314082989 has 2 divisors, whose sum is σ = 18314082990. Its totient is φ = 18314082988.

The previous prime is 18314082979. The next prime is 18314083013. The reversal of 18314082989 is 98928041381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16215984964 + 2098098025 = 127342^2 + 45805^2 .

It is a cyclic number.

It is not a de Polignac number, because 18314082989 - 2²⁰ = 18313034413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18314082989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18314082959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9157041494 + 9157041495.

It is an arithmetic number, because the mean of its divisors is an integer number (9157041495).

Almost surely, 2^18314082989 is an apocalyptic number.

It is an amenable number.

18314082989 is a deficient number, since it is larger than the sum of its proper divisors (1).

18314082989 is an equidigital number, since it uses as much as digits as its factorization.

18314082989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 53.

The spelling of 18314082989 in words is "eighteen billion, three hundred fourteen million, eighty-two thousand, nine hundred eighty-nine".