855668878 has 8 divisors (see below), whose sum is σ = 1283676768. Its totient is φ = 427776624.

The previous prime is 855668833. The next prime is 855668897. The reversal of 855668878 is 878866558.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7126 + ... + 41977.

It is an arithmetic number, because the mean of its divisors is an integer number (160459596).

Almost surely, 2^855668878 is an apocalyptic number.

855668878 is a deficient number, since it is larger than the sum of its proper divisors (428007890).

855668878 is a wasteful number, since it uses less digits than its factorization.

855668878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57818.

The product of its digits is 25804800, while the sum is 61.

The square root of 855668878 is about 29251.8183708295. The cubic root of 855668878 is about 949.3694349236.

The spelling of 855668878 in words is "eight hundred fifty-five million, six hundred sixty-eight thousand, eight hundred seventy-eight".