28564622646582 has 48 divisors (see below), whose sum is σ = 64492116592176. Its totient is φ = 8422001755200.

The previous prime is 28564622646569. The next prime is 28564622646643.

28564622646582 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 531665169 + ... + 531718892.

It is an arithmetic number, because the mean of its divisors is an integer number (1343585762337).

Almost surely, 2^{28564622646582} is an apocalyptic number.

28564622646582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28564622646582 is an abundant number, since it is smaller than the sum of its proper divisors (35927493945594).

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

28564622646582 is a wasteful number, since it uses less digits than its factorization.

28564622646582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063384125 (or 1063384114 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 66.

The spelling of 28564622646582 in words is "twenty-eight trillion, five hundred sixty-four billion, six hundred twenty-two million, six hundred forty-six thousand, five hundred eighty-two".