28715181043 has 2 divisors, whose sum is σ = 28715181044. Its totient is φ = 28715181042.

The previous prime is 28715181031. The next prime is 28715181091. The reversal of 28715181043 is 34018151782.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28715181043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28715180987 and 28715181005.

It is not a weakly prime, because it can be changed into another prime (28715131043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14357590521 + 14357590522.

It is an arithmetic number, because the mean of its divisors is an integer number (14357590522).

Almost surely, 2^28715181043 is an apocalyptic number.

28715181043 is a deficient number, since it is larger than the sum of its proper divisors (1).

28715181043 is an equidigital number, since it uses as much as digits as its factorization.

28715181043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 28715181043 in words is "twenty-eight billion, seven hundred fifteen million, one hundred eighty-one thousand, forty-three".