28965936823 has 2 divisors, whose sum is σ = 28965936824. Its totient is φ = 28965936822.

The previous prime is 28965936757. The next prime is 28965936847. The reversal of 28965936823 is 32863956982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28965936823 - 2²⁹ = 28429065911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28965936323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14482968411 + 14482968412.

It is an arithmetic number, because the mean of its divisors is an integer number (14482968412).

Almost surely, 2^28965936823 is an apocalyptic number.

28965936823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28965936823 is an equidigital number, since it uses as much as digits as its factorization.

28965936823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 61.

The spelling of 28965936823 in words is "twenty-eight billion, nine hundred sixty-five million, nine hundred thirty-six thousand, eight hundred twenty-three".