8135275847 has 4 divisors (see below), whose sum is σ = 8563448280. Its totient is φ = 7707103416.

The previous prime is 8135275787. The next prime is 8135275859. The reversal of 8135275847 is 7485725318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7485725318 = 2 ⋅3742862659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8135275847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8135275795 and 8135275804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8135271847) 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 in 3 ways as a sum of consecutive naturals, for example, 214086188 + ... + 214086225.

It is an arithmetic number, because the mean of its divisors is an integer number (2140862070).

Almost surely, 2^8135275847 is an apocalyptic number.

8135275847 is a deficient number, since it is larger than the sum of its proper divisors (428172433).

8135275847 is a wasteful number, since it uses less digits than its factorization.

8135275847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428172432.

The product of its digits is 1881600, while the sum is 50.

The square root of 8135275847 is about 90195.7640191600. The cubic root of 8135275847 is about 2011.2100373885.

The spelling of 8135275847 in words is "eight billion, one hundred thirty-five million, two hundred seventy-five thousand, eight hundred forty-seven".