15327715265 has 4 divisors (see below), whose sum is σ = 18393258324. Its totient is φ = 12262172208.

The previous prime is 15327715229. The next prime is 15327715289. The reversal of 15327715265 is 56251772351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56251772351 = 83 ⋅677732197.

It can be written as a sum of positive squares in 2 ways, for example, as 3518981041 + 11808734224 = 59321^2 + 108668^2 .

It is a cyclic number.

It is not a de Polignac number, because 15327715265 - 2¹² = 15327711169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532771522 + ... + 1532771531.

It is an arithmetic number, because the mean of its divisors is an integer number (4598314581).

Almost surely, 2^15327715265 is an apocalyptic number.

It is an amenable number.

15327715265 is a deficient number, since it is larger than the sum of its proper divisors (3065543059).

15327715265 is an equidigital number, since it uses as much as digits as its factorization.

15327715265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065543058.

The product of its digits is 441000, while the sum is 44.

The spelling of 15327715265 in words is "fifteen billion, three hundred twenty-seven million, seven hundred fifteen thousand, two hundred sixty-five".