28437785863 has 2 divisors, whose sum is σ = 28437785864. Its totient is φ = 28437785862.

The previous prime is 28437785843. The next prime is 28437785869. The reversal of 28437785863 is 36858773482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28437785863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28437785869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14218892931 + 14218892932.

It is an arithmetic number, because the mean of its divisors is an integer number (14218892932).

Almost surely, 2^28437785863 is an apocalyptic number.

28437785863 is a deficient number, since it is larger than the sum of its proper divisors (1).

28437785863 is an equidigital number, since it uses as much as digits as its factorization.

28437785863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54190080, while the sum is 61.

The spelling of 28437785863 in words is "twenty-eight billion, four hundred thirty-seven million, seven hundred eighty-five thousand, eight hundred sixty-three".