28545786822 has 48 divisors (see below), whose sum is σ = 66441461760. Its totient is φ = 8152400592.

The previous prime is 28545786821. The next prime is 28545786851. The reversal of 28545786822 is 22868754582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28545786821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699579 + ... + 739257.

It is an arithmetic number, because the mean of its divisors is an integer number (1384197120).

Almost surely, 2^28545786822 is an apocalyptic number.

28545786822 is an abundant number, since it is smaller than the sum of its proper divisors (37895674938).

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

28545786822 is a wasteful number, since it uses less digits than its factorization.

28545786822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42145 (or 42138 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 57.

The spelling of 28545786822 in words is "twenty-eight billion, five hundred forty-five million, seven hundred eighty-six thousand, eight hundred twenty-two".