28456725823 has 2 divisors, whose sum is σ = 28456725824. Its totient is φ = 28456725822.

The previous prime is 28456725757. The next prime is 28456725881. The reversal of 28456725823 is 32852765482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28456725823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28456729823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14228362911 + 14228362912.

It is an arithmetic number, because the mean of its divisors is an integer number (14228362912).

Almost surely, 2^28456725823 is an apocalyptic number.

28456725823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28456725823 is an equidigital number, since it uses as much as digits as its factorization.

28456725823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6451200, while the sum is 52.

The spelling of 28456725823 in words is "twenty-eight billion, four hundred fifty-six million, seven hundred twenty-five thousand, eight hundred twenty-three".