28681000507 has 2 divisors, whose sum is σ = 28681000508. Its totient is φ = 28681000506.

The previous prime is 28681000501. The next prime is 28681000519. The reversal of 28681000507 is 70500018682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28681000507 - 2²³ = 28672611899 is a prime.

It is not a weakly prime, because it can be changed into another prime (28681000501) 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, 14340500253 + 14340500254.

It is an arithmetic number, because the mean of its divisors is an integer number (14340500254).

Almost surely, 2^28681000507 is an apocalyptic number.

28681000507 is a deficient number, since it is larger than the sum of its proper divisors (1).

28681000507 is an equidigital number, since it uses as much as digits as its factorization.

28681000507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 28681000507 in words is "twenty-eight billion, six hundred eighty-one million, five hundred seven", and thus it is an aban number.