868049159 has 2 divisors, whose sum is σ = 868049160. Its totient is φ = 868049158.

The previous prime is 868049153. The next prime is 868049167. The reversal of 868049159 is 951940868.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868049159 - 2⁸ = 868048903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868049153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434024579 + 434024580.

It is an arithmetic number, because the mean of its divisors is an integer number (434024580).

Almost surely, 2^868049159 is an apocalyptic number.

868049159 is a deficient number, since it is larger than the sum of its proper divisors (1).

868049159 is an equidigital number, since it uses as much as digits as its factorization.

868049159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 868049159 is about 29462.6739960921. The cubic root of 868049159 is about 953.9261923423.

The spelling of 868049159 in words is "eight hundred sixty-eight million, forty-nine thousand, one hundred fifty-nine".