8113659427505 has 8 divisors (see below), whose sum is σ = 9737493141672. Its totient is φ = 6490192989568.

The previous prime is 8113659427481. The next prime is 8113659427543. The reversal of 8113659427505 is 5057249563118.

It can be written as a sum of positive squares in 4 ways, for example, as 2925974460304 + 5187684967201 = 1710548^2 + 2277649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8113659427505 - 2⁶ = 8113659427441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91770452 + ... + 91858821.

It is an arithmetic number, because the mean of its divisors is an integer number (1217186642709).

It is a 1-persistent number, because it is pandigital, but 2⋅8113659427505 = 16227318855010 is not.

Almost surely, 2^{8113659427505} is an apocalyptic number.

It is an amenable number.

8113659427505 is a deficient number, since it is larger than the sum of its proper divisors (1623833714167).

8113659427505 is a wasteful number, since it uses less digits than its factorization.

8113659427505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183638115.

The product of its (nonzero) digits is 9072000, while the sum is 56.

The spelling of 8113659427505 in words is "eight trillion, one hundred thirteen billion, six hundred fifty-nine million, four hundred twenty-seven thousand, five hundred five".