285793268492880 has 120 divisors (see below), whose sum is σ = 961386048266280. Its totient is φ = 76084730265600.

The previous prime is 285793268492821. The next prime is 285793268492903. The reversal of 285793268492880 is 88294862397582.

It is a happy number.

285793268492880 is a `hidden beast` number, since 2 + 8 + 5 + 7 + 9 + 326 + 8 + 4 + 9 + 288 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17017704063504 + 268775564429376 = 4125252^2 + 16394376^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×285793268492880² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285793268492880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329796145 + ... + 330661584.

It is an arithmetic number, because the mean of its divisors is an integer number (8011550402219).

Almost surely, 2^{285793268492880} is an apocalyptic number.

285793268492880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285793268492880 is an abundant number, since it is smaller than the sum of its proper divisors (675592779773400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285793268492880 is a wasteful number, since it uses less digits than its factorization.

285793268492880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660458349 (or 660458340 counting only the distinct ones).

The product of its (nonzero) digits is 6688604160, while the sum is 81.

The spelling of 285793268492880 in words is "two hundred eighty-five trillion, seven hundred ninety-three billion, two hundred sixty-eight million, four hundred ninety-two thousand, eight hundred eighty".