475493921856 has 168 divisors, whose sum is σ = 1385904715104. Its totient is φ = 155842928640.

The previous prime is 475493921821. The next prime is 475493921863. The reversal of 475493921856 is 658129394574.

475493921856 is a `hidden beast` number, since 4 + 7 + 5 + 493 + 92 + 1 + 8 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 475493921793 and 475493921802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10063920 + ... + 10111056.

It is an arithmetic number, because the mean of its divisors is an integer number (8249432828).

Almost surely, 2^475493921856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475493921856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692952357552).

475493921856 is an abundant number, since it is smaller than the sum of its proper divisors (910410793248).

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

475493921856 is a wasteful number, since it uses less digits than its factorization.

475493921856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47449 (or 47436 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 475493921856 in words is "four hundred seventy-five billion, four hundred ninety-three million, nine hundred twenty-one thousand, eight hundred fifty-six".