8135887021063 has 2 divisors, whose sum is σ = 8135887021064. Its totient is φ = 8135887021062.

The previous prime is 8135887021039. The next prime is 8135887021111. The reversal of 8135887021063 is 3601207885318.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8135887021063 - 2¹³ = 8135887012871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8135887021063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8135887021363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067943510531 + 4067943510532.

It is an arithmetic number, because the mean of its divisors is an integer number (4067943510532).

Almost surely, 2^{8135887021063} is an apocalyptic number.

8135887021063 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135887021063 is an equidigital number, since it uses as much as digits as its factorization.

8135887021063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 8135887021063 in words is "eight trillion, one hundred thirty-five billion, eight hundred eighty-seven million, twenty-one thousand, sixty-three".