12855593617919 has 16 divisors (see below), whose sum is σ = 14550350707200. Its totient is φ = 11269098076896.

The previous prime is 12855593617693. The next prime is 12855593618017. The reversal of 12855593617919 is 91971639555821.

It is not a de Polignac number, because 12855593617919 - 2²⁰ = 12855592569343 is a prime.

It is a super-2 number, since 2×12855593617919² (a number of 27 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 (12855593617519) 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, 154617779 + ... + 154700900.

It is an arithmetic number, because the mean of its divisors is an integer number (909396919200).

Almost surely, 2^{12855593617919} is an apocalyptic number.

12855593617919 is a deficient number, since it is larger than the sum of its proper divisors (1694757089281).

12855593617919 is a wasteful number, since it uses less digits than its factorization.

12855593617919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309318854.

The product of its digits is 183708000, while the sum is 71.

The spelling of 12855593617919 in words is "twelve trillion, eight hundred fifty-five billion, five hundred ninety-three million, six hundred seventeen thousand, nine hundred nineteen".