12285715857157 has 8 divisors (see below), whose sum is σ = 12921312844800. Its totient is φ = 11665074092880.

The previous prime is 12285715857119. The next prime is 12285715857229. The reversal of 12285715857157 is 75175851758221.

It is a happy number.

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 12285715857157 - 2³¹ = 12283568373509 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 (12285716857157) 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, 3738804157 + ... + 3738807442.

It is an arithmetic number, because the mean of its divisors is an integer number (1615164105600).

Almost surely, 2^{12285715857157} is an apocalyptic number.

It is an amenable number.

12285715857157 is a deficient number, since it is larger than the sum of its proper divisors (635596987643).

12285715857157 is an equidigital number, since it uses as much as digits as its factorization.

12285715857157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477611683.

The product of its digits is 54880000, while the sum is 64.

The spelling of 12285715857157 in words is "twelve trillion, two hundred eighty-five billion, seven hundred fifteen million, eight hundred fifty-seven thousand, one hundred fifty-seven".