31734443218 has 12 divisors (see below), whose sum is σ = 50566475322. Its totient is φ = 14933855360.

The previous prime is 31734443203. The next prime is 31734443249. The reversal of 31734443218 is 81234443713.

It can be written as a sum of positive squares in 3 ways, for example, as 27051367729 + 4683075489 = 164473^2 + 68433^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 27451363 + ... + 27452518.

Almost surely, 2^31734443218 is an apocalyptic number.

31734443218 is a deficient number, since it is larger than the sum of its proper divisors (18832032104).

31734443218 is a wasteful number, since it uses less digits than its factorization.

31734443218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54903917 (or 54903900 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The spelling of 31734443218 in words is "thirty-one billion, seven hundred thirty-four million, four hundred forty-three thousand, two hundred eighteen".