13432740257 has 2 divisors, whose sum is σ = 13432740258. Its totient is φ = 13432740256.

The previous prime is 13432740227. The next prime is 13432740259. The reversal of 13432740257 is 75204723431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13281179536 + 151560721 = 115244^2 + 12311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13432740257 is a prime.

Together with 13432740259, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13432740257.

It is not a weakly prime, because it can be changed into another prime (13432740259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6716370128 + 6716370129.

It is an arithmetic number, because the mean of its divisors is an integer number (6716370129).

Almost surely, 2^13432740257 is an apocalyptic number.

It is an amenable number.

13432740257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13432740257 is an equidigital number, since it uses as much as digits as its factorization.

13432740257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 13432740257 in words is "thirteen billion, four hundred thirty-two million, seven hundred forty thousand, two hundred fifty-seven".