28305654933 has 32 divisors (see below), whose sum is σ = 39782679552. Its totient is φ = 17876851200.

The previous prime is 28305654901. The next prime is 28305654941. The reversal of 28305654933 is 33945650382.

It is not a de Polignac number, because 28305654933 - 2⁵ = 28305654901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28305655933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2266041 + ... + 2278497.

It is an arithmetic number, because the mean of its divisors is an integer number (1243208736).

Almost surely, 2^28305654933 is an apocalyptic number.

It is an amenable number.

28305654933 is a deficient number, since it is larger than the sum of its proper divisors (11477024619).

28305654933 is a wasteful number, since it uses less digits than its factorization.

28305654933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 28305654933 in words is "twenty-eight billion, three hundred five million, six hundred fifty-four thousand, nine hundred thirty-three".