28313085587 has 2 divisors, whose sum is σ = 28313085588. Its totient is φ = 28313085586.

The previous prime is 28313085569. The next prime is 28313085643. The reversal of 28313085587 is 78558031382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28313085587 - 2²⁸ = 28044650131 is a prime.

It is not a weakly prime, because it can be changed into another prime (28313045587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14156542793 + 14156542794.

It is an arithmetic number, because the mean of its divisors is an integer number (14156542794).

Almost surely, 2^28313085587 is an apocalyptic number.

28313085587 is a deficient number, since it is larger than the sum of its proper divisors (1).

28313085587 is an equidigital number, since it uses as much as digits as its factorization.

28313085587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 28313085587 in words is "twenty-eight billion, three hundred thirteen million, eighty-five thousand, five hundred eighty-seven".