28331504863 has 2 divisors, whose sum is σ = 28331504864. Its totient is φ = 28331504862.

The previous prime is 28331504837. The next prime is 28331504881. The reversal of 28331504863 is 36840513382.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28331504863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28331504893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14165752431 + 14165752432.

It is an arithmetic number, because the mean of its divisors is an integer number (14165752432).

Almost surely, 2^28331504863 is an apocalyptic number.

28331504863 is a deficient number, since it is larger than the sum of its proper divisors (1).

28331504863 is an equidigital number, since it uses as much as digits as its factorization.

28331504863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 28331504863 in words is "twenty-eight billion, three hundred thirty-one million, five hundred four thousand, eight hundred sixty-three".