268648886587 has 2 divisors, whose sum is σ = 268648886588. Its totient is φ = 268648886586.

The previous prime is 268648886573. The next prime is 268648886591. The reversal of 268648886587 is 785688846862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268648886587 - 2³¹ = 266501402939 is a prime.

It is not a weakly prime, because it can be changed into another prime (268648886507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134324443293 + 134324443294.

It is an arithmetic number, because the mean of its divisors is an integer number (134324443294).

Almost surely, 2^268648886587 is an apocalyptic number.

268648886587 is a deficient number, since it is larger than the sum of its proper divisors (1).

268648886587 is an equidigital number, since it uses as much as digits as its factorization.

268648886587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1981808640, while the sum is 76.

The spelling of 268648886587 in words is "two hundred sixty-eight billion, six hundred forty-eight million, eight hundred eighty-six thousand, five hundred eighty-seven".