8114351681 has 4 divisors (see below), whose sum is σ = 8134791252. Its totient is φ = 8093912112.

The previous prime is 8114351671. The next prime is 8114351683. The reversal of 8114351681 is 1861534118.

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 2441249281 + 5673102400 = 49409^2 + 75320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8114351681 is a prime.

It is a super-2 number, since 2×8114351681² (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 (8114351683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10219190 + ... + 10219983.

It is an arithmetic number, because the mean of its divisors is an integer number (2033697813).

Almost surely, 2^8114351681 is an apocalyptic number.

It is an amenable number.

8114351681 is a deficient number, since it is larger than the sum of its proper divisors (20439571).

8114351681 is a wasteful number, since it uses less digits than its factorization.

8114351681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439570.

The product of its digits is 23040, while the sum is 38.

The square root of 8114351681 is about 90079.6962750208. The cubic root of 8114351681 is about 2009.4842600622.

Adding to 8114351681 its reverse (1861534118), we get a palindrome (9975885799).

The spelling of 8114351681 in words is "eight billion, one hundred fourteen million, three hundred fifty-one thousand, six hundred eighty-one".