872131131278 has 8 divisors (see below), whose sum is σ = 1427123669400. Its totient is φ = 396423241480.

The previous prime is 872131131259. The next prime is 872131131283.

872131131278 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×872131131278² (a number of 25 digits) contains 22 as substring.

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, 19821162053 + ... + 19821162096.

It is an arithmetic number, because the mean of its divisors is an integer number (178390458675).

Almost surely, 2^872131131278 is an apocalyptic number.

872131131278 is a deficient number, since it is larger than the sum of its proper divisors (554992538122).

872131131278 is a wasteful number, since it uses less digits than its factorization.

872131131278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39642324162.

The product of its digits is 112896, while the sum is 44.

The spelling of 872131131278 in words is "eight hundred seventy-two billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred seventy-eight".