28906234573 has 16 divisors (see below), whose sum is σ = 30537656640. Its totient is φ = 27285984000.

The previous prime is 28906234519. The next prime is 28906234583. The reversal of 28906234573 is 37543260982.

It is a cyclic number.

It is not a de Polignac number, because 28906234573 - 2³³ = 20316299981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28906234583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9727978 + ... + 9730948.

It is an arithmetic number, because the mean of its divisors is an integer number (1908603540).

Almost surely, 2^28906234573 is an apocalyptic number.

It is an amenable number.

28906234573 is a deficient number, since it is larger than the sum of its proper divisors (1631422067).

28906234573 is a wasteful number, since it uses less digits than its factorization.

28906234573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 28906234573 in words is "twenty-eight billion, nine hundred six million, two hundred thirty-four thousand, five hundred seventy-three".