12309055657 has 8 divisors (see below), whose sum is σ = 12491741696. Its totient is φ = 12127508352.

The previous prime is 12309055631. The next prime is 12309055691. The reversal of 12309055657 is 75655090321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12309055657 - 2⁷ = 12309055529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12309055607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262893 + ... + 306154.

It is an arithmetic number, because the mean of its divisors is an integer number (1561467712).

Almost surely, 2^12309055657 is an apocalyptic number.

It is an amenable number.

12309055657 is a deficient number, since it is larger than the sum of its proper divisors (182686039).

12309055657 is an equidigital number, since it uses as much as digits as its factorization.

12309055657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569367.

The product of its (nonzero) digits is 283500, while the sum is 43.

The spelling of 12309055657 in words is "twelve billion, three hundred nine million, fifty-five thousand, six hundred fifty-seven".