285623805181306 has 4 divisors (see below), whose sum is σ = 428435707771962. Its totient is φ = 142811902590652.

The previous prime is 285623805181283. The next prime is 285623805181327. The reversal of 285623805181306 is 603181508326582.

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

It can be written as a sum of positive squares in only one way, i.e., 198127892275681 + 87495912905625 = 14075791^2 + 9353925^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71405951295325 + ... + 71405951295328.

Almost surely, 2^{285623805181306} is an apocalyptic number.

285623805181306 is a deficient number, since it is larger than the sum of its proper divisors (142811902590656).

285623805181306 is a wasteful number, since it uses less digits than its factorization.

285623805181306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142811902590655.

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 285623805181306 in words is "two hundred eighty-five trillion, six hundred twenty-three billion, eight hundred five million, one hundred eighty-one thousand, three hundred six".