28543585422 has 16 divisors (see below), whose sum is σ = 62276913792. Its totient is φ = 8649571320.

The previous prime is 28543585393. The next prime is 28543585481. The reversal of 28543585422 is 22458534582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216239218 + ... + 216239349.

It is an arithmetic number, because the mean of its divisors is an integer number (3892307112).

Almost surely, 2^28543585422 is an apocalyptic number.

28543585422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28543585422 is an abundant number, since it is smaller than the sum of its proper divisors (33733328370).

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

28543585422 is a wasteful number, since it uses less digits than its factorization.

28543585422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432478583.

The product of its digits is 3072000, while the sum is 48.

The spelling of 28543585422 in words is "twenty-eight billion, five hundred forty-three million, five hundred eighty-five thousand, four hundred twenty-two".