15791272489 has 2 divisors, whose sum is σ = 15791272490. Its totient is φ = 15791272488.

The previous prime is 15791272447. The next prime is 15791272507. The reversal of 15791272489 is 98427219751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9377985600 + 6413286889 = 96840^2 + 80083^2 .

It is a cyclic number.

It is not a de Polignac number, because 15791272489 - 2⁷ = 15791272361 is a prime.

It is a super-3 number, since 3×15791272489³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (15791279489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7895636244 + 7895636245.

It is an arithmetic number, because the mean of its divisors is an integer number (7895636245).

Almost surely, 2^15791272489 is an apocalyptic number.

It is an amenable number.

15791272489 is a deficient number, since it is larger than the sum of its proper divisors (1).

15791272489 is an equidigital number, since it uses as much as digits as its factorization.

15791272489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 55.

The spelling of 15791272489 in words is "fifteen billion, seven hundred ninety-one million, two hundred seventy-two thousand, four hundred eighty-nine".