868718508 has 48 divisors (see below), whose sum is σ = 2370466560. Its totient is φ = 242432064.

The previous prime is 868718503. The next prime is 868718563. The reversal of 868718508 is 805817868.

It is a happy number.

It is a super-2 number, since 2×868718508² = 1509343692283492128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868718503) 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, 116643 + ... + 123866.

It is an arithmetic number, because the mean of its divisors is an integer number (49384720).

Almost surely, 2^868718508 is an apocalyptic number.

It is an amenable number.

868718508 is an abundant number, since it is smaller than the sum of its proper divisors (1501748052).

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

868718508 is a wasteful number, since it uses less digits than its factorization.

868718508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240566 (or 240564 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 51.

The square root of 868718508 is about 29474.0310782221. The cubic root of 868718508 is about 954.1713188190.

The spelling of 868718508 in words is "eight hundred sixty-eight million, seven hundred eighteen thousand, five hundred eight".