12559868345 has 32 divisors (see below), whose sum is σ = 16211518848. Its totient is φ = 9307726848.

The previous prime is 12559868339. The next prime is 12559868371. The reversal of 12559868345 is 54386895521.

It is not a de Polignac number, because 12559868345 - 2¹² = 12559864249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1951022 + ... + 1957448.

It is an arithmetic number, because the mean of its divisors is an integer number (506609964).

Almost surely, 2^12559868345 is an apocalyptic number.

It is an amenable number.

12559868345 is a deficient number, since it is larger than the sum of its proper divisors (3651650503).

12559868345 is a wasteful number, since it uses less digits than its factorization.

12559868345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809.

The product of its digits is 10368000, while the sum is 56.

The spelling of 12559868345 in words is "twelve billion, five hundred fifty-nine million, eight hundred sixty-eight thousand, three hundred forty-five".