878331868 has 6 divisors (see below), whose sum is σ = 1537080776. Its totient is φ = 439165932.

The previous prime is 878331851. The next prime is 878331869. The reversal of 878331868 is 868133878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878331869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109791480 + ... + 109791487.

Almost surely, 2^878331868 is an apocalyptic number.

It is an amenable number.

878331868 is a deficient number, since it is larger than the sum of its proper divisors (658748908).

878331868 is a wasteful number, since it uses less digits than its factorization.

878331868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219582971 (or 219582969 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 878331868 is about 29636.6642522400. The cubic root of 878331868 is about 957.6780792565.

The spelling of 878331868 in words is "eight hundred seventy-eight million, three hundred thirty-one thousand, eight hundred sixty-eight".