28059959424 has 64 divisors (see below), whose sum is σ = 85182027840. Its totient is φ = 8017130496.

The previous prime is 28059959423. The next prime is 28059959429. The reversal of 28059959424 is 42495995082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×28059959424² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28059959423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216799 + ... + 5222174.

It is an arithmetic number, because the mean of its divisors is an integer number (1330969185).

Almost surely, 2^28059959424 is an apocalyptic number.

28059959424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28059959424 is an abundant number, since it is smaller than the sum of its proper divisors (57122068416).

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

28059959424 is a wasteful number, since it uses less digits than its factorization.

28059959424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438997 (or 10438985 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 28059959424 in words is "twenty-eight billion, fifty-nine million, nine hundred fifty-nine thousand, four hundred twenty-four".