31960747056 has 240 divisors, whose sum is σ = 98831674368. Its totient is φ = 8868787200.

The previous prime is 31960747051. The next prime is 31960747079. The reversal of 31960747056 is 65074706913.

It is a happy number.

It is a super-2 number, since 2×31960747056² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 31960746996 and 31960747014.

It is not an unprimeable number, because it can be changed into a prime (31960747051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26132461 + ... + 26133683.

Almost surely, 2^31960747056 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 31960747056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49415837184).

31960747056 is an abundant number, since it is smaller than the sum of its proper divisors (66870927312).

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

31960747056 is a wasteful number, since it uses less digits than its factorization.

31960747056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

It can be divided in two parts, 319607 and 47056, that added together give a palindrome (366663).

The spelling of 31960747056 in words is "thirty-one billion, nine hundred sixty million, seven hundred forty-seven thousand, fifty-six".