831325081444 has 48 divisors (see below), whose sum is σ = 1733230590336. Its totient is φ = 343894924800.

The previous prime is 831325081429. The next prime is 831325081453. The reversal of 831325081444 is 444180523138.

It is a super-2 number, since 2×831325081444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 831325081444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10194357 + ... + 10275580.

It is an arithmetic number, because the mean of its divisors is an integer number (36108970632).

Almost surely, 2^831325081444 is an apocalyptic number.

It is an amenable number.

831325081444 is an abundant number, since it is smaller than the sum of its proper divisors (901905508892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831325081444 is a wasteful number, since it uses less digits than its factorization.

831325081444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470036 (or 20470034 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 831325081444 in words is "eight hundred thirty-one billion, three hundred twenty-five million, eighty-one thousand, four hundred forty-four".