478521785222 has 8 divisors (see below), whose sum is σ = 772996730016. Its totient is φ = 220856208552.

The previous prime is 478521785201. The next prime is 478521785227. The reversal of 478521785222 is 222587125874.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478521785227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9202341998 + ... + 9202342049.

It is an arithmetic number, because the mean of its divisors is an integer number (96624591252).

Almost surely, 2^478521785222 is an apocalyptic number.

478521785222 is a deficient number, since it is larger than the sum of its proper divisors (294474944794).

478521785222 is a wasteful number, since it uses less digits than its factorization.

478521785222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404684062.

The product of its digits is 5017600, while the sum is 53.

The spelling of 478521785222 in words is "four hundred seventy-eight billion, five hundred twenty-one million, seven hundred eighty-five thousand, two hundred twenty-two".