15327328591 has 2 divisors, whose sum is σ = 15327328592. Its totient is φ = 15327328590.

The previous prime is 15327328567. The next prime is 15327328619. The reversal of 15327328591 is 19582372351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15327328591 - 2²⁵ = 15293774159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15327328561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7663664295 + 7663664296.

It is an arithmetic number, because the mean of its divisors is an integer number (7663664296).

Almost surely, 2^15327328591 is an apocalyptic number.

15327328591 is a deficient number, since it is larger than the sum of its proper divisors (1).

15327328591 is an equidigital number, since it uses as much as digits as its factorization.

15327328591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 46.

The spelling of 15327328591 in words is "fifteen billion, three hundred twenty-seven million, three hundred twenty-eight thousand, five hundred ninety-one".