285881359328 has 24 divisors (see below), whose sum is σ = 562957380720. Its totient is φ = 142908056320.

The previous prime is 285881359319. The next prime is 285881359381. The reversal of 285881359328 is 823953188582.

It is a super-2 number, since 2×285881359328² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876773 + ... + 1157796.

It is an arithmetic number, because the mean of its divisors is an integer number (23456557530).

Almost surely, 2^285881359328 is an apocalyptic number.

It is an amenable number.

285881359328 is a deficient number, since it is larger than the sum of its proper divisors (277076021392).

285881359328 is a wasteful number, since it uses less digits than its factorization.

285881359328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038970 (or 2038962 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 62.

The spelling of 285881359328 in words is "two hundred eighty-five billion, eight hundred eighty-one million, three hundred fifty-nine thousand, three hundred twenty-eight".