868947018 has 8 divisors (see below), whose sum is σ = 1737894048. Its totient is φ = 289649004.

The previous prime is 868947017. The next prime is 868947041. The reversal of 868947018 is 810749868.

It is a sphenic number, since it is the product of 3 distinct primes.

868947018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (868947017) 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, 72412246 + ... + 72412257.

It is an arithmetic number, because the mean of its divisors is an integer number (217236756).

Almost surely, 2^868947018 is an apocalyptic number.

868947018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868947018 is a wasteful number, since it uses less digits than its factorization.

868947018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144824508.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 868947018 is about 29477.9072866443. The cubic root of 868947018 is about 954.2549740618.

The spelling of 868947018 in words is "eight hundred sixty-eight million, nine hundred forty-seven thousand, eighteen".