8135887021039 has 2 divisors, whose sum is σ = 8135887021040. Its totient is φ = 8135887021038.

The previous prime is 8135887020991. The next prime is 8135887021063. The reversal of 8135887021039 is 9301207885318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8135887021039 - 2¹⁷ = 8135886889967 is a prime.

It is a super-2 number, since 2×8135887021039² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8135887021739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067943510519 + 4067943510520.

It is an arithmetic number, because the mean of its divisors is an integer number (4067943510520).

Almost surely, 2^{8135887021039} is an apocalyptic number.

8135887021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135887021039 is an equidigital number, since it uses as much as digits as its factorization.

8135887021039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 8135887021039 in words is "eight trillion, one hundred thirty-five billion, eight hundred eighty-seven million, twenty-one thousand, thirty-nine".