285779938364 has 6 divisors (see below), whose sum is σ = 500114892144. Its totient is φ = 142889969180.

The previous prime is 285779938361. The next prime is 285779938369. The reversal of 285779938364 is 463839977582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285779938361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35722492292 + ... + 35722492299.

It is an arithmetic number, because the mean of its divisors is an integer number (83352482024).

Almost surely, 2^285779938364 is an apocalyptic number.

It is an amenable number.

285779938364 is a deficient number, since it is larger than the sum of its proper divisors (214334953780).

285779938364 is a wasteful number, since it uses less digits than its factorization.

285779938364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71444984595 (or 71444984593 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 71.

The spelling of 285779938364 in words is "two hundred eighty-five billion, seven hundred seventy-nine million, nine hundred thirty-eight thousand, three hundred sixty-four".