15680346791 has 2 divisors, whose sum is σ = 15680346792. Its totient is φ = 15680346790.

The previous prime is 15680346769. The next prime is 15680346811. The reversal of 15680346791 is 19764308651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15680346791 - 2²² = 15676152487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15680346691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7840173395 + 7840173396.

It is an arithmetic number, because the mean of its divisors is an integer number (7840173396).

Almost surely, 2^15680346791 is an apocalyptic number.

15680346791 is a deficient number, since it is larger than the sum of its proper divisors (1).

15680346791 is an equidigital number, since it uses as much as digits as its factorization.

15680346791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 15680346791 in words is "fifteen billion, six hundred eighty million, three hundred forty-six thousand, seven hundred ninety-one".