12586815123 has 16 divisors (see below), whose sum is σ = 16817673600. Its totient is φ = 8373604736.

The previous prime is 12586815061. The next prime is 12586815127. The reversal of 12586815123 is 32151868521.

It is a cyclic number.

It is not a de Polignac number, because 12586815123 - 2¹⁶ = 12586749587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12586815127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5206411 + ... + 5208827.

It is an arithmetic number, because the mean of its divisors is an integer number (1051104600).

Almost surely, 2^12586815123 is an apocalyptic number.

12586815123 is a deficient number, since it is larger than the sum of its proper divisors (4230858477).

12586815123 is a wasteful number, since it uses less digits than its factorization.

12586815123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346.

The product of its digits is 115200, while the sum is 42.

The spelling of 12586815123 in words is "twelve billion, five hundred eighty-six million, eight hundred fifteen thousand, one hundred twenty-three".