863126868 has 12 divisors (see below), whose sum is σ = 2013962720. Its totient is φ = 287708952.

The previous prime is 863126863. The next prime is 863126921. The reversal of 863126868 is 868621368.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863126863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35963608 + ... + 35963631.

Almost surely, 2^863126868 is an apocalyptic number.

It is an amenable number.

863126868 is an abundant number, since it is smaller than the sum of its proper divisors (1150835852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863126868 is a wasteful number, since it uses less digits than its factorization.

863126868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71927246 (or 71927244 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 863126868 is about 29379.0208822554. The cubic root of 863126868 is about 952.1196872447.

The spelling of 863126868 in words is "eight hundred sixty-three million, one hundred twenty-six thousand, eight hundred sixty-eight".