860091231117889 has 16 divisors (see below), whose sum is σ = 865993001932800. Its totient is φ = 854204220555840.

The previous prime is 860091231117869. The next prime is 860091231117913. The reversal of 860091231117889 is 988711132190068.

It is a cyclic number.

It is not a de Polignac number, because 860091231117889 - 2⁵ = 860091231117857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 860091231117889.

It is not an unprimeable number, because it can be changed into a prime (860091231117869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1766042587 + ... + 1766529535.

It is an arithmetic number, because the mean of its divisors is an integer number (54124562620800).

Almost surely, 2^{860091231117889} is an apocalyptic number.

It is an amenable number.

860091231117889 is a deficient number, since it is larger than the sum of its proper divisors (5901770814911).

860091231117889 is a wasteful number, since it uses less digits than its factorization.

860091231117889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502080.

The product of its (nonzero) digits is 10450944, while the sum is 64.

The spelling of 860091231117889 in words is "eight hundred sixty trillion, ninety-one billion, two hundred thirty-one million, one hundred seventeen thousand, eight hundred eighty-nine".