578112321485 has 4 divisors (see below), whose sum is σ = 693734785788. Its totient is φ = 462489857184.

The previous prime is 578112321463. The next prime is 578112321487. The reversal of 578112321485 is 584123211875.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151877001796 + 426235319689 = 389714^2 + 652867^2 .

It is a cyclic number.

It is not a de Polignac number, because 578112321485 - 2¹⁴ = 578112305101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578112321487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57811232144 + ... + 57811232153.

It is an arithmetic number, because the mean of its divisors is an integer number (173433696447).

Almost surely, 2^578112321485 is an apocalyptic number.

It is an amenable number.

578112321485 is a deficient number, since it is larger than the sum of its proper divisors (115622464303).

578112321485 is a wasteful number, since it uses less digits than its factorization.

578112321485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115622464302.

The product of its digits is 537600, while the sum is 47.

The spelling of 578112321485 in words is "five hundred seventy-eight billion, one hundred twelve million, three hundred twenty-one thousand, four hundred eighty-five".