15391613089 has 2 divisors, whose sum is σ = 15391613090. Its totient is φ = 15391613088.

The previous prime is 15391613053. The next prime is 15391613143. The reversal of 15391613089 is 98031619351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8750667025 + 6640946064 = 93545^2 + 81492^2 .

It is a cyclic number.

It is not a de Polignac number, because 15391613089 - 2⁷ = 15391612961 is a prime.

It is a super-2 number, since 2×15391613089² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15391613189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7695806544 + 7695806545.

It is an arithmetic number, because the mean of its divisors is an integer number (7695806545).

Almost surely, 2^15391613089 is an apocalyptic number.

It is an amenable number.

15391613089 is a deficient number, since it is larger than the sum of its proper divisors (1).

15391613089 is an equidigital number, since it uses as much as digits as its factorization.

15391613089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 15391613089 in words is "fifteen billion, three hundred ninety-one million, six hundred thirteen thousand, eighty-nine".