868023589117 has 2 divisors, whose sum is σ = 868023589118. Its totient is φ = 868023589116.

The previous prime is 868023589099. The next prime is 868023589183. The reversal of 868023589117 is 711985320868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698646894201 + 169376694916 = 835851^2 + 411554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868023589117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868023589417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434011794558 + 434011794559.

It is an arithmetic number, because the mean of its divisors is an integer number (434011794559).

Almost surely, 2^868023589117 is an apocalyptic number.

It is an amenable number.

868023589117 is a deficient number, since it is larger than the sum of its proper divisors (1).

868023589117 is an equidigital number, since it uses as much as digits as its factorization.

868023589117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 58.

The spelling of 868023589117 in words is "eight hundred sixty-eight billion, twenty-three million, five hundred eighty-nine thousand, one hundred seventeen".