478922219538 has 48 divisors (see below), whose sum is σ = 1101438950976. Its totient is φ = 135995124960.

The previous prime is 478922219521. The next prime is 478922219549. The reversal of 478922219538 is 835912229874.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901308 + ... + 1330488.

It is an arithmetic number, because the mean of its divisors is an integer number (22946644812).

Almost surely, 2^478922219538 is an apocalyptic number.

478922219538 is an abundant number, since it is smaller than the sum of its proper divisors (622516731438).

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

478922219538 is a wasteful number, since it uses less digits than its factorization.

478922219538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429519 (or 429356 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The spelling of 478922219538 in words is "four hundred seventy-eight billion, nine hundred twenty-two million, two hundred nineteen thousand, five hundred thirty-eight".