12844556395 has 16 divisors (see below), whose sum is σ = 17051523840. Its totient is φ = 9209922400.

The previous prime is 12844556369. The next prime is 12844556411. The reversal of 12844556395 is 59365544821.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12844556395 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1640725 + ... + 1648534.

It is an arithmetic number, because the mean of its divisors is an integer number (1065720240).

Almost surely, 2^12844556395 is an apocalyptic number.

12844556395 is a deficient number, since it is larger than the sum of its proper divisors (4206967445).

12844556395 is a wasteful number, since it uses less digits than its factorization.

12844556395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289346.

The product of its digits is 5184000, while the sum is 52.

The spelling of 12844556395 in words is "twelve billion, eight hundred forty-four million, five hundred fifty-six thousand, three hundred ninety-five".