28568019846 has 16 divisors (see below), whose sum is σ = 57180797424. Its totient is φ = 9515213664.

The previous prime is 28568019833. The next prime is 28568019847. The reversal of 28568019846 is 64891086582.

It is a happy number.

It is a super-2 number, since 2×28568019846² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568019847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856605 + ... + 1871928.

It is an arithmetic number, because the mean of its divisors is an integer number (3573799839).

Almost surely, 2^28568019846 is an apocalyptic number.

28568019846 is an abundant number, since it is smaller than the sum of its proper divisors (28612777578).

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

28568019846 is a wasteful number, since it uses less digits than its factorization.

28568019846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729815.

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 28568019846 in words is "twenty-eight billion, five hundred sixty-eight million, nineteen thousand, eight hundred forty-six".