28889393334 has 32 divisors (see below), whose sum is σ = 62781711360. Its totient is φ = 8828676000.

The previous prime is 28889393311. The next prime is 28889393339. The reversal of 28889393334 is 43339398882.

It is a super-3 number, since 3×28889393334³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889393339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4083817 + ... + 4090884.

It is an arithmetic number, because the mean of its divisors is an integer number (1961928480).

Almost surely, 2^28889393334 is an apocalyptic number.

28889393334 is an abundant number, since it is smaller than the sum of its proper divisors (33892318026).

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

28889393334 is a wasteful number, since it uses less digits than its factorization.

28889393334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174756.

The product of its digits is 26873856, while the sum is 60.

The spelling of 28889393334 in words is "twenty-eight billion, eight hundred eighty-nine million, three hundred ninety-three thousand, three hundred thirty-four".