15889116679 has 2 divisors, whose sum is σ = 15889116680. Its totient is φ = 15889116678.

The previous prime is 15889116629. The next prime is 15889116697. The reversal of 15889116679 is 97661198851.

Together with next prime (15889116697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15889116679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15889116629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7944558339 + 7944558340.

It is an arithmetic number, because the mean of its divisors is an integer number (7944558340).

Almost surely, 2^15889116679 is an apocalyptic number.

15889116679 is a deficient number, since it is larger than the sum of its proper divisors (1).

15889116679 is an equidigital number, since it uses as much as digits as its factorization.

15889116679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 61.

The spelling of 15889116679 in words is "fifteen billion, eight hundred eighty-nine million, one hundred sixteen thousand, six hundred seventy-nine".