881731318972 has 24 divisors (see below), whose sum is σ = 1764888303584. Its totient is φ = 377579351232.

The previous prime is 881731318967. The next prime is 881731318997. The reversal of 881731318972 is 279813137188.

It is a super-2 number, since 2×881731318972² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12693903 + ... + 12763174.

Almost surely, 2^881731318972 is an apocalyptic number.

It is an amenable number.

881731318972 is an abundant number, since it is smaller than the sum of its proper divisors (883156984612).

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

881731318972 is a wasteful number, since it uses less digits than its factorization.

881731318972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25458325 (or 25458323 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 58.

The spelling of 881731318972 in words is "eight hundred eighty-one billion, seven hundred thirty-one million, three hundred eighteen thousand, nine hundred seventy-two".