13979347189 has 2 divisors, whose sum is σ = 13979347190. Its totient is φ = 13979347188.

The previous prime is 13979347153. The next prime is 13979347237. The reversal of 13979347189 is 98174397931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12807448900 + 1171898289 = 113170^2 + 34233^2 .

It is a cyclic number.

It is not a de Polignac number, because 13979347189 - 2³³ = 5389412597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13979347139) 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, 6989673594 + 6989673595.

It is an arithmetic number, because the mean of its divisors is an integer number (6989673595).

Almost surely, 2^13979347189 is an apocalyptic number.

It is an amenable number.

13979347189 is a deficient number, since it is larger than the sum of its proper divisors (1).

13979347189 is an equidigital number, since it uses as much as digits as its factorization.

13979347189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 61.

The spelling of 13979347189 in words is "thirteen billion, nine hundred seventy-nine million, three hundred forty-seven thousand, one hundred eighty-nine".