31782068082 has 24 divisors (see below), whose sum is σ = 68866201404. Its totient is φ = 10593245184.

The previous prime is 31782068053. The next prime is 31782068099. The reversal of 31782068082 is 28086028713.

It can be written as a sum of positive squares in 2 ways, for example, as 28554578361 + 3227489721 = 168981^2 + 56811^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221458 + ... + 335570.

Almost surely, 2^31782068082 is an apocalyptic number.

31782068082 is an abundant number, since it is smaller than the sum of its proper divisors (37084133322).

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

31782068082 is a wasteful number, since it uses less digits than its factorization.

31782068082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129594 (or 129591 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 31782068082 in words is "thirty-one billion, seven hundred eighty-two million, sixty-eight thousand, eighty-two".