31957282756 has 45 divisors (see below), whose sum is σ = 65636753259. Its totient is φ = 13574774976.

The previous prime is 31957282739. The next prime is 31957282757. The reversal of 31957282756 is 65728275913.

The square root of 31957282756 is 178766.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 29744521156 + 2212761600 = 172466^2 + 47040^2 .

It is a super-2 number, since 2×31957282756² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31957282697 and 31957282706.

It is not an unprimeable number, because it can be changed into a prime (31957282757) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 282807756 + ... + 282807868.

Almost surely, 2^31957282756 is an apocalyptic number.

31957282756 is the 178766-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31957282756

31957282756 is an abundant number, since it is smaller than the sum of its proper divisors (33679470503).

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

31957282756 is an frugal number, since it uses more digits than its factorization.

31957282756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 122 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 31957282756 in words is "thirty-one billion, nine hundred fifty-seven million, two hundred eighty-two thousand, seven hundred fifty-six".