868591084741 has 2 divisors, whose sum is σ = 868591084742. Its totient is φ = 868591084740.

The previous prime is 868591084667. The next prime is 868591084763. The reversal of 868591084741 is 147480195868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501045959716 + 367545125025 = 707846^2 + 606255^2 .

It is a cyclic number.

It is not a de Polignac number, because 868591084741 - 2¹¹ = 868591082693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 868591084741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868591081741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434295542370 + 434295542371.

It is an arithmetic number, because the mean of its divisors is an integer number (434295542371).

Almost surely, 2^868591084741 is an apocalyptic number.

It is an amenable number.

868591084741 is a deficient number, since it is larger than the sum of its proper divisors (1).

868591084741 is an equidigital number, since it uses as much as digits as its factorization.

868591084741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 868591084741 in words is "eight hundred sixty-eight billion, five hundred ninety-one million, eighty-four thousand, seven hundred forty-one".