8113842469 has 4 divisors (see below), whose sum is σ = 8114233644. Its totient is φ = 8113451296.

The previous prime is 8113842463. The next prime is 8113842481. The reversal of 8113842469 is 9642483118.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4087939969 + 4025902500 = 63937^2 + 63450^2 .

It is a cyclic number.

It is not a de Polignac number, because 8113842469 - 2⁵ = 8113842437 is a prime.

It is a super-2 number, since 2×8113842469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113842463) 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, 162622 + ... + 206575.

It is an arithmetic number, because the mean of its divisors is an integer number (2028558411).

Almost surely, 2^8113842469 is an apocalyptic number.

It is an amenable number.

8113842469 is a deficient number, since it is larger than the sum of its proper divisors (391175).

8113842469 is a wasteful number, since it uses less digits than its factorization.

8113842469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391174.

The product of its digits is 331776, while the sum is 46.

The square root of 8113842469 is about 90076.8697779846. The cubic root of 8113842469 is about 2009.4422244630.

The spelling of 8113842469 in words is "eight billion, one hundred thirteen million, eight hundred forty-two thousand, four hundred sixty-nine".