8331486044689 has 2 divisors, whose sum is σ = 8331486044690. Its totient is φ = 8331486044688.

The previous prime is 8331486044677. The next prime is 8331486044719. The reversal of 8331486044689 is 9864406841338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8312467428225 + 19018616464 = 2883135^2 + 137908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8331486044689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8331486044689.

It is not a weakly prime, because it can be changed into another prime (8331486044639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4165743022344 + 4165743022345.

It is an arithmetic number, because the mean of its divisors is an integer number (4165743022345).

Almost surely, 2^{8331486044689} is an apocalyptic number.

It is an amenable number.

8331486044689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8331486044689 is an equidigital number, since it uses as much as digits as its factorization.

8331486044689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95551488, while the sum is 64.

The spelling of 8331486044689 in words is "eight trillion, three hundred thirty-one billion, four hundred eighty-six million, forty-four thousand, six hundred eighty-nine".