12859901093 has 4 divisors (see below), whose sum is σ = 13849124268. Its totient is φ = 11870677920.

The previous prime is 12859901077. The next prime is 12859901129. The reversal of 12859901093 is 39010995821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1667742244 + 11192158849 = 40838^2 + 105793^2 .

It is a cyclic number.

It is not a de Polignac number, because 12859901093 - 2⁴ = 12859901077 is a prime.

It is a super-2 number, since 2×12859901093² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12859901023) 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, 494611568 + ... + 494611593.

It is an arithmetic number, because the mean of its divisors is an integer number (3462281067).

Almost surely, 2^12859901093 is an apocalyptic number.

12859901093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12859901093 is a deficient number, since it is larger than the sum of its proper divisors (989223175).

12859901093 is an equidigital number, since it uses as much as digits as its factorization.

12859901093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989223174.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 12859901093 in words is "twelve billion, eight hundred fifty-nine million, nine hundred one thousand, ninety-three".