15902097089 has 2 divisors, whose sum is σ = 15902097090. Its totient is φ = 15902097088.

The previous prime is 15902097083. The next prime is 15902097119. The reversal of 15902097089 is 98079020951.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15790435600 + 111661489 = 125660^2 + 10567^2 .

It is an emirp because it is prime and its reverse (98079020951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15902097089 is a prime.

It is not a weakly prime, because it can be changed into another prime (15902097083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7951048544 + 7951048545.

It is an arithmetic number, because the mean of its divisors is an integer number (7951048545).

Almost surely, 2^15902097089 is an apocalyptic number.

It is an amenable number.

15902097089 is a deficient number, since it is larger than the sum of its proper divisors (1).

15902097089 is an equidigital number, since it uses as much as digits as its factorization.

15902097089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 15902097089 in words is "fifteen billion, nine hundred two million, ninety-seven thousand, eighty-nine".