28222113689528 has 96 divisors (see below), whose sum is σ = 61957860336000. Its totient is φ = 11947078393920.

The previous prime is 28222113689527. The next prime is 28222113689617. The reversal of 28222113689528 is 82598631122282.

It is a happy number.

It is a super-2 number, since 2×28222113689528² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222113689527) 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, 5654348 + ... + 9402971.

It is an arithmetic number, because the mean of its divisors is an integer number (645394378500).

Almost surely, 2^{28222113689528} is an apocalyptic number.

It is an amenable number.

28222113689528 is an abundant number, since it is smaller than the sum of its proper divisors (33735746646472).

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

28222113689528 is a wasteful number, since it uses less digits than its factorization.

28222113689528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15057433 (or 15057410 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 59.

The spelling of 28222113689528 in words is "twenty-eight trillion, two hundred twenty-two billion, one hundred thirteen million, six hundred eighty-nine thousand, five hundred twenty-eight".