31922084880 has 480 divisors, whose sum is σ = 128638730880. Its totient is φ = 7254696960.

The previous prime is 31922084867. The next prime is 31922084891. The reversal of 31922084880 is 8848022913.

It is a super-2 number, since 2×31922084880² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20849715 + ... + 20851245.

It is an arithmetic number, because the mean of its divisors is an integer number (267997356).

Almost surely, 2^31922084880 is an apocalyptic number.

31922084880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31922084880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64319365440).

31922084880 is an abundant number, since it is smaller than the sum of its proper divisors (96716646000).

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

31922084880 is a wasteful number, since it uses less digits than its factorization.

31922084880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 31922084880 in words is "thirty-one billion, nine hundred twenty-two million, eighty-four thousand, eight hundred eighty".