31732770080 has 96 divisors (see below), whose sum is σ = 81912212928. Its totient is φ = 11521100800.

The previous prime is 31732770049. The next prime is 31732770089. The reversal of 31732770080 is 8007723713.

It is not an unprimeable number, because it can be changed into a prime (31732770089) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1135475 + ... + 1163085.

It is an arithmetic number, because the mean of its divisors is an integer number (853252218).

Almost surely, 2^31732770080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31732770080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40956106464).

31732770080 is an abundant number, since it is smaller than the sum of its proper divisors (50179442848).

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

31732770080 is a wasteful number, since it uses less digits than its factorization.

31732770080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28290 (or 28282 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 31732770080 in words is "thirty-one billion, seven hundred thirty-two million, seven hundred seventy thousand, eighty".