28585442214 has 40 divisors (see below), whose sum is σ = 73202934288. Its totient is φ = 8167268880.

The previous prime is 28585442213. The next prime is 28585442219. The reversal of 28585442214 is 41224458582.

It is a happy number.

28585442214 is a `hidden beast` number, since 2 + 8 + 585 + 4 + 42 + 21 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28585442214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585442213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12602677 + ... + 12604944.

Almost surely, 2^28585442214 is an apocalyptic number.

28585442214 is an abundant number, since it is smaller than the sum of its proper divisors (44617492074).

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

28585442214 is a wasteful number, since it uses less digits than its factorization.

28585442214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25207642 (or 25207633 counting only the distinct ones).

The product of its digits is 819200, while the sum is 45.

The spelling of 28585442214 in words is "twenty-eight billion, five hundred eighty-five million, four hundred forty-two thousand, two hundred fourteen".