872321123278 has 16 divisors (see below), whose sum is σ = 1462250044080. Its totient is φ = 386838635200.

The previous prime is 872321123251. The next prime is 872321123291.

It is a happy number.

872321123278 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483547393 + ... + 483549196.

It is an arithmetic number, because the mean of its divisors is an integer number (91390627755).

Almost surely, 2^872321123278 is an apocalyptic number.

872321123278 is a deficient number, since it is larger than the sum of its proper divisors (589928920802).

872321123278 is a wasteful number, since it uses less digits than its factorization.

872321123278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967096643.

The product of its digits is 451584, while the sum is 46.

It can be divided in two parts, 872321 and 123278, that added together give a palindrome (995599).

The spelling of 872321123278 in words is "eight hundred seventy-two billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred seventy-eight".