13980447379 has 2 divisors, whose sum is σ = 13980447380. Its totient is φ = 13980447378.

The previous prime is 13980447337. The next prime is 13980447413. The reversal of 13980447379 is 97374408931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13980447379 - 2¹¹ = 13980445331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13980447179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6990223689 + 6990223690.

It is an arithmetic number, because the mean of its divisors is an integer number (6990223690).

Almost surely, 2^13980447379 is an apocalyptic number.

13980447379 is a deficient number, since it is larger than the sum of its proper divisors (1).

13980447379 is an equidigital number, since it uses as much as digits as its factorization.

13980447379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 13980447379 in words is "thirteen billion, nine hundred eighty million, four hundred forty-seven thousand, three hundred seventy-nine".