15328391293 has 4 divisors (see below), whose sum is σ = 15856956540. Its totient is φ = 14799826048.

The previous prime is 15328391291. The next prime is 15328391311. The reversal of 15328391293 is 39219382351.

15328391293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11551305529 + 3777085764 = 107477^2 + 61458^2 .

It is a cyclic number.

It is not a de Polignac number, because 15328391293 - 2¹ = 15328391291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15328391291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264282580 + ... + 264282637.

It is an arithmetic number, because the mean of its divisors is an integer number (3964239135).

Almost surely, 2^15328391293 is an apocalyptic number.

It is an amenable number.

15328391293 is a deficient number, since it is larger than the sum of its proper divisors (528565247).

15328391293 is an equidigital number, since it uses as much as digits as its factorization.

15328391293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528565246.

The product of its digits is 349920, while the sum is 46.

The spelling of 15328391293 in words is "fifteen billion, three hundred twenty-eight million, three hundred ninety-one thousand, two hundred ninety-three".