31481682226 has 16 divisors (see below), whose sum is σ = 47668322520. Its totient is φ = 15592919040.

The previous prime is 31481682209. The next prime is 31481682227. The reversal of 31481682226 is 62228618413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29771777025 + 1709905201 = 172545^2 + 41351^2 .

It is not an unprimeable number, because it can be changed into a prime (31481682227) 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 7 ways as a sum of consecutive naturals, for example, 76161 + ... + 262228.

Almost surely, 2^31481682226 is an apocalyptic number.

31481682226 is a deficient number, since it is larger than the sum of its proper divisors (16186640294).

31481682226 is a wasteful number, since it uses less digits than its factorization.

31481682226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338829.

The product of its digits is 221184, while the sum is 43.

The spelling of 31481682226 in words is "thirty-one billion, four hundred eighty-one million, six hundred eighty-two thousand, two hundred twenty-six".