28391724455183 has 2 divisors, whose sum is σ = 28391724455184. Its totient is φ = 28391724455182.

The previous prime is 28391724455153. The next prime is 28391724455189. The reversal of 28391724455183 is 38155442719382.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28391724455183 - 2¹² = 28391724451087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28391724455189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14195862227591 + 14195862227592.

It is an arithmetic number, because the mean of its divisors is an integer number (14195862227592).

Almost surely, 2^{28391724455183} is an apocalyptic number.

28391724455183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28391724455183 is an equidigital number, since it uses as much as digits as its factorization.

28391724455183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58060800, while the sum is 62.

The spelling of 28391724455183 in words is "twenty-eight trillion, three hundred ninety-one billion, seven hundred twenty-four million, four hundred fifty-five thousand, one hundred eighty-three".