868949868 has 24 divisors (see below), whose sum is σ = 2038756720. Its totient is φ = 288048960.

The previous prime is 868949863. The next prime is 868949869.

868949868 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 868949799 and 868949808.

It is not an unprimeable number, because it can be changed into a prime (868949863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197863 + ... + 202206.

Almost surely, 2^868949868 is an apocalyptic number.

It is an amenable number.

868949868 is an abundant number, since it is smaller than the sum of its proper divisors (1169806852).

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

868949868 is a wasteful number, since it uses less digits than its factorization.

868949868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400257 (or 400255 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 66.

The square root of 868949868 is about 29477.9556278925. The cubic root of 868949868 is about 954.2560173259.

The spelling of 868949868 in words is "eight hundred sixty-eight million, nine hundred forty-nine thousand, eight hundred sixty-eight".