28320597326 has 48 divisors (see below), whose sum is σ = 52131839760. Its totient is φ = 11473297920.

The previous prime is 28320597311. The next prime is 28320597343. The reversal of 28320597326 is 62379502382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 841886 + ... + 874878.

It is an arithmetic number, because the mean of its divisors is an integer number (1086079995).

Almost surely, 2^28320597326 is an apocalyptic number.

28320597326 is a deficient number, since it is larger than the sum of its proper divisors (23811242434).

28320597326 is a wasteful number, since it uses less digits than its factorization.

28320597326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33489 (or 33482 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 28320597326 in words is "twenty-eight billion, three hundred twenty million, five hundred ninety-seven thousand, three hundred twenty-six".