13900327979 has 2 divisors, whose sum is σ = 13900327980. Its totient is φ = 13900327978.

The previous prime is 13900327921. The next prime is 13900327981. The reversal of 13900327979 is 97972300931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13900327979 - 2¹⁶ = 13900262443 is a prime.

Together with 13900327981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13900327919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6950163989 + 6950163990.

It is an arithmetic number, because the mean of its divisors is an integer number (6950163990).

Almost surely, 2^13900327979 is an apocalyptic number.

13900327979 is a deficient number, since it is larger than the sum of its proper divisors (1).

13900327979 is an equidigital number, since it uses as much as digits as its factorization.

13900327979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 642978, while the sum is 50.

The spelling of 13900327979 in words is "thirteen billion, nine hundred million, three hundred twenty-seven thousand, nine hundred seventy-nine".