863654668 has 48 divisors (see below), whose sum is σ = 1606848768. Its totient is φ = 405504000.

The previous prime is 863654651. The next prime is 863654681. The reversal of 863654668 is 866456368.

863654668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306258 + ... + 1306918.

It is an arithmetic number, because the mean of its divisors is an integer number (33476016).

Almost surely, 2^863654668 is an apocalyptic number.

It is an amenable number.

863654668 is a deficient number, since it is larger than the sum of its proper divisors (743194100).

863654668 is a wasteful number, since it uses less digits than its factorization.

863654668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 992 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 52.

The square root of 863654668 is about 29388.0021097046. The cubic root of 863654668 is about 952.3137206646.

The spelling of 863654668 in words is "eight hundred sixty-three million, six hundred fifty-four thousand, six hundred sixty-eight".