12314278115855 has 4 divisors (see below), whose sum is σ = 14777133739032. Its totient is φ = 9851422492680.

The previous prime is 12314278115809. The next prime is 12314278115869. The reversal of 12314278115855 is 55851187241321.

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

It is a de Polignac number, because none of the positive numbers 2^k-12314278115855 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12314278115797 and 12314278115806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231427811581 + ... + 1231427811590.

It is an arithmetic number, because the mean of its divisors is an integer number (3694283434758).

Almost surely, 2^{12314278115855} is an apocalyptic number.

12314278115855 is a deficient number, since it is larger than the sum of its proper divisors (2462855623177).

12314278115855 is an equidigital number, since it uses as much as digits as its factorization.

12314278115855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462855623176.

The product of its digits is 2688000, while the sum is 53.

The spelling of 12314278115855 in words is "twelve trillion, three hundred fourteen billion, two hundred seventy-eight million, one hundred fifteen thousand, eight hundred fifty-five".