31055397282 has 72 divisors (see below), whose sum is σ = 84293252316. Its totient is φ = 8190431424.

The previous prime is 31055397271. The next prime is 31055397287. The reversal of 31055397282 is 28279355013.

31055397282 is a `hidden beast` number, since 3 + 1 + 0 + 553 + 97 + 2 + 8 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22049577081 + 9005820201 = 148491^2 + 94899^2 .

It is not an unprimeable number, because it can be changed into a prime (31055397287) 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 35 ways as a sum of consecutive naturals, for example, 1342773 + ... + 1365704.

Almost surely, 2^31055397282 is an apocalyptic number.

31055397282 is an abundant number, since it is smaller than the sum of its proper divisors (53237855034).

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

31055397282 is a wasteful number, since it uses less digits than its factorization.

31055397282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708512 (or 2708502 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 31055397282 in words is "thirty-one billion, fifty-five million, three hundred ninety-seven thousand, two hundred eighty-two".