12859732869 has 4 divisors (see below), whose sum is σ = 17146310496. Its totient is φ = 8573155244.

The previous prime is 12859732867. The next prime is 12859732871. The reversal of 12859732869 is 96823795821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12859732867) and next prime (12859732871).

It is a cyclic number.

It is not a de Polignac number, because 12859732869 - 2¹ = 12859732867 is a prime.

It is a super-2 number, since 2×12859732869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12859732867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143288809 + ... + 2143288814.

It is an arithmetic number, because the mean of its divisors is an integer number (4286577624).

Almost surely, 2^12859732869 is an apocalyptic number.

It is an amenable number.

12859732869 is a deficient number, since it is larger than the sum of its proper divisors (4286577627).

12859732869 is an equidigital number, since it uses as much as digits as its factorization.

12859732869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286577626.

The product of its digits is 13063680, while the sum is 60.

The spelling of 12859732869 in words is "twelve billion, eight hundred fifty-nine million, seven hundred thirty-two thousand, eight hundred sixty-nine".