31833961110649 has 2 divisors, whose sum is σ = 31833961110650. Its totient is φ = 31833961110648.

The previous prime is 31833961110647. The next prime is 31833961110659. The reversal of 31833961110649 is 94601116933813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22398988821049 + 9434972289600 = 4732757^2 + 3071640^2 .

It is a cyclic number.

It is not a de Polignac number, because 31833961110649 - 2¹ = 31833961110647 is a prime.

Together with 31833961110647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31833961110649.

It is not a weakly prime, because it can be changed into another prime (31833961110647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15916980555324 + 15916980555325.

It is an arithmetic number, because the mean of its divisors is an integer number (15916980555325).

Almost surely, 2^{31833961110649} is an apocalyptic number.

It is an amenable number.

31833961110649 is a deficient number, since it is larger than the sum of its proper divisors (1).

31833961110649 is an equidigital number, since it uses as much as digits as its factorization.

31833961110649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 31833961110649 in words is "thirty-one trillion, eight hundred thirty-three billion, nine hundred sixty-one million, one hundred ten thousand, six hundred forty-nine".