28552610438 has 32 divisors (see below), whose sum is σ = 48011546880. Its totient is φ = 12620763360.

The previous prime is 28552610381. The next prime is 28552610467. The reversal of 28552610438 is 83401625582.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 1651145 + ... + 1668347.

It is an arithmetic number, because the mean of its divisors is an integer number (1500360840).

Almost surely, 2^28552610438 is an apocalyptic number.

28552610438 is a deficient number, since it is larger than the sum of its proper divisors (19458936442).

28552610438 is a wasteful number, since it uses less digits than its factorization.

28552610438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19292.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 28552610438 in words is "twenty-eight billion, five hundred fifty-two million, six hundred ten thousand, four hundred thirty-eight".