868888816 has 10 divisors (see below), whose sum is σ = 1683472112. Its totient is φ = 434444400.

The previous prime is 868888793. The next prime is 868888817. The reversal of 868888816 is 618888868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868888817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27152760 + ... + 27152791.

Almost surely, 2^868888816 is an apocalyptic number.

It is an amenable number.

868888816 is a deficient number, since it is larger than the sum of its proper divisors (814583296).

868888816 is a wasteful number, since it uses less digits than its factorization.

868888816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54305559 (or 54305553 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 61.

The square root of 868888816 is about 29476.9200562067. The cubic root of 868888816 is about 954.2336682795.

The spelling of 868888816 in words is "eight hundred sixty-eight million, eight hundred eighty-eight thousand, eight hundred sixteen".