8113698281 has 6 divisors (see below), whose sum is σ = 8785839150. Its totient is φ = 7489567488.

The previous prime is 8113698277. The next prime is 8113698301. The reversal of 8113698281 is 1828963118.

It can be written as a sum of positive squares in 3 ways, for example, as 207821056 + 7905877225 = 14416^2 + 88915^2 .

It is not a de Polignac number, because 8113698281 - 2² = 8113698277 is a prime.

It is a super-2 number, since 2×8113698281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8113688281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24004856 + ... + 24005193.

It is an arithmetic number, because the mean of its divisors is an integer number (1464306525).

Almost surely, 2^8113698281 is an apocalyptic number.

It is an amenable number.

8113698281 is a deficient number, since it is larger than the sum of its proper divisors (672140869).

8113698281 is a wasteful number, since it uses less digits than its factorization.

8113698281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48010075 (or 48010062 counting only the distinct ones).

The product of its digits is 165888, while the sum is 47.

The square root of 8113698281 is about 90076.0694135795. The cubic root of 8113698281 is about 2009.4303213820.

The spelling of 8113698281 in words is "eight billion, one hundred thirteen million, six hundred ninety-eight thousand, two hundred eighty-one".