28023843664 has 40 divisors (see below), whose sum is σ = 57730769280. Its totient is φ = 13132482048.

The previous prime is 28023843629. The next prime is 28023843677. The reversal of 28023843664 is 46634832082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150534 + ... + 280549.

It is an arithmetic number, because the mean of its divisors is an integer number (1443269232).

Almost surely, 2^28023843664 is an apocalyptic number.

It is an amenable number.

28023843664 is an abundant number, since it is smaller than the sum of its proper divisors (29706925616).

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

28023843664 is a wasteful number, since it uses less digits than its factorization.

28023843664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431347 (or 431341 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 28023843664 in words is "twenty-eight billion, twenty-three million, eight hundred forty-three thousand, six hundred sixty-four".