486789878 has 4 divisors (see below), whose sum is σ = 730184820. Its totient is φ = 243394938.

The previous prime is 486789859. The next prime is 486789889. The reversal of 486789878 is 878987684.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121697468 + ... + 121697471.

It is an arithmetic number, because the mean of its divisors is an integer number (182546205).

Almost surely, 2^486789878 is an apocalyptic number.

486789878 is a deficient number, since it is larger than the sum of its proper divisors (243394942).

486789878 is a wasteful number, since it uses less digits than its factorization.

486789878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243394941.

The product of its digits is 43352064, while the sum is 65.

The square root of 486789878 is about 22063.3152087351. The cubic root of 486789878 is about 786.6481272164.

The spelling of 486789878 in words is "four hundred eighty-six million, seven hundred eighty-nine thousand, eight hundred seventy-eight".