12857148789 has 8 divisors (see below), whose sum is σ = 17466315552. Its totient is φ = 8409707280.

The previous prime is 12857148769. The next prime is 12857148827. The reversal of 12857148789 is 98784175821.

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

It is not a de Polignac number, because 12857148789 - 2⁸ = 12857148533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857148769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40431127 + ... + 40431444.

It is an arithmetic number, because the mean of its divisors is an integer number (2183289444).

Almost surely, 2^12857148789 is an apocalyptic number.

It is an amenable number.

12857148789 is a deficient number, since it is larger than the sum of its proper divisors (4609166763).

12857148789 is an equidigital number, since it uses as much as digits as its factorization.

12857148789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80862627.

The product of its digits is 9031680, while the sum is 60.

The spelling of 12857148789 in words is "twelve billion, eight hundred fifty-seven million, one hundred forty-eight thousand, seven hundred eighty-nine".