12309690325 has 6 divisors (see below), whose sum is σ = 15264016034. Its totient is φ = 9847752240.

The previous prime is 12309690313. The next prime is 12309690353. The reversal of 12309690325 is 52309690321.

It can be written as a sum of positive squares in 3 ways, for example, as 2766549604 + 9543140721 = 52598^2 + 97689^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12309690325 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246193782 + ... + 246193831.

Almost surely, 2^12309690325 is an apocalyptic number.

It is an amenable number.

12309690325 is a deficient number, since it is larger than the sum of its proper divisors (2954325709).

12309690325 is an equidigital number, since it uses as much as digits as its factorization.

12309690325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492387623 (or 492387618 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 12309690325 in words is "twelve billion, three hundred nine million, six hundred ninety thousand, three hundred twenty-five".