13979604937 has 2 divisors, whose sum is σ = 13979604938. Its totient is φ = 13979604936.

The previous prime is 13979604869. The next prime is 13979604949. The reversal of 13979604937 is 73940697931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11523807801 + 2455797136 = 107349^2 + 49556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13979604937 is a prime.

It is not a weakly prime, because it can be changed into another prime (13979604967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6989802468 + 6989802469.

It is an arithmetic number, because the mean of its divisors is an integer number (6989802469).

Almost surely, 2^13979604937 is an apocalyptic number.

It is an amenable number.

13979604937 is a deficient number, since it is larger than the sum of its proper divisors (1).

13979604937 is an equidigital number, since it uses as much as digits as its factorization.

13979604937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7715736, while the sum is 58.

The spelling of 13979604937 in words is "thirteen billion, nine hundred seventy-nine million, six hundred four thousand, nine hundred thirty-seven".