28655740443 has 16 divisors (see below), whose sum is σ = 41730796800. Its totient is φ = 17346398880.

The previous prime is 28655740441. The next prime is 28655740483. The reversal of 28655740443 is 34404755682.

It is not a de Polignac number, because 28655740443 - 2¹ = 28655740441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28655740392 and 28655740401.

It is not an unprimeable number, because it can be changed into a prime (28655740441) by changing a digit.

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, 489808 + ... + 545181.

It is an arithmetic number, because the mean of its divisors is an integer number (2608174800).

Almost surely, 2^28655740443 is an apocalyptic number.

28655740443 is a deficient number, since it is larger than the sum of its proper divisors (13075056357).

28655740443 is a wasteful number, since it uses less digits than its factorization.

28655740443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035842.

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 28655740443 in words is "twenty-eight billion, six hundred fifty-five million, seven hundred forty thousand, four hundred forty-three".