6840126852589 has 2 divisors, whose sum is σ = 6840126852590. Its totient is φ = 6840126852588.

The previous prime is 6840126852557. The next prime is 6840126852631. The reversal of 6840126852589 is 9852586210486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6590731486564 + 249395366025 = 2567242^2 + 499395^2 .

It is a cyclic number.

It is not a de Polignac number, because 6840126852589 - 2⁵ = 6840126852557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6840126852589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6840126852529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3420063426294 + 3420063426295.

It is an arithmetic number, because the mean of its divisors is an integer number (3420063426295).

Almost surely, 2^{6840126852589} is an apocalyptic number.

It is an amenable number.

6840126852589 is a deficient number, since it is larger than the sum of its proper divisors (1).

6840126852589 is an equidigital number, since it uses as much as digits as its factorization.

6840126852589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66355200, while the sum is 64.

The spelling of 6840126852589 in words is "six trillion, eight hundred forty billion, one hundred twenty-six million, eight hundred fifty-two thousand, five hundred eighty-nine".