475921878 has 16 divisors (see below), whose sum is σ = 967448496. Its totient is φ = 156039840.

The previous prime is 475921843. The next prime is 475921921. The reversal of 475921878 is 878129574.

It is a self number, because there is not a number n which added to its sum of digits gives 475921878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649801 + ... + 650532.

It is an arithmetic number, because the mean of its divisors is an integer number (60465531).

Almost surely, 2^475921878 is an apocalyptic number.

475921878 is an abundant number, since it is smaller than the sum of its proper divisors (491526618).

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

475921878 is a wasteful number, since it uses less digits than its factorization.

475921878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300399.

The product of its digits is 1128960, while the sum is 51.

The square root of 475921878 is about 21815.6337978066. The cubic root of 475921878 is about 780.7498148030.

The spelling of 475921878 in words is "four hundred seventy-five million, nine hundred twenty-one thousand, eight hundred seventy-eight".