478538722345 has 8 divisors (see below), whose sum is σ = 574250779080. Its totient is φ = 382828103040.

The previous prime is 478538722331. The next prime is 478538722357. The reversal of 478538722345 is 543227835874.

It can be written as a sum of positive squares in 4 ways, for example, as 332602498089 + 145936224256 = 576717^2 + 382016^2 .

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

It is not a de Polignac number, because 478538722345 - 2⁵ = 478538722313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478538722345.

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, 611511 + ... + 1153699.

It is an arithmetic number, because the mean of its divisors is an integer number (71781347385).

Almost surely, 2^478538722345 is an apocalyptic number.

It is an amenable number.

478538722345 is a deficient number, since it is larger than the sum of its proper divisors (95712056735).

478538722345 is a wasteful number, since it uses less digits than its factorization.

478538722345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718715.

The product of its digits is 45158400, while the sum is 58.

The spelling of 478538722345 in words is "four hundred seventy-eight billion, five hundred thirty-eight million, seven hundred twenty-two thousand, three hundred forty-five".