15680878559 has 2 divisors, whose sum is σ = 15680878560. Its totient is φ = 15680878558.

The previous prime is 15680878547. The next prime is 15680878561. The reversal of 15680878559 is 95587808651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15680878559 - 2¹⁶ = 15680813023 is a prime.

Together with 15680878561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15680878529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7840439279 + 7840439280.

It is an arithmetic number, because the mean of its divisors is an integer number (7840439280).

Almost surely, 2^15680878559 is an apocalyptic number.

15680878559 is a deficient number, since it is larger than the sum of its proper divisors (1).

15680878559 is an equidigital number, since it uses as much as digits as its factorization.

15680878559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192000, while the sum is 62.

The spelling of 15680878559 in words is "fifteen billion, six hundred eighty million, eight hundred seventy-eight thousand, five hundred fifty-nine".