8030512681 has 2 divisors, whose sum is σ = 8030512682. Its totient is φ = 8030512680.

The previous prime is 8030512673. The next prime is 8030512691. The reversal of 8030512681 is 1862150308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7485710400 + 544802281 = 86520^2 + 23341^2 .

It is a cyclic number.

It is not a de Polignac number, because 8030512681 - 2³ = 8030512673 is a prime.

It is a super-2 number, since 2×8030512681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8030512691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4015256340 + 4015256341.

It is an arithmetic number, because the mean of its divisors is an integer number (4015256341).

Almost surely, 2^8030512681 is an apocalyptic number.

It is an amenable number.

8030512681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8030512681 is an equidigital number, since it uses as much as digits as its factorization.

8030512681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 8030512681 is about 89613.1278385037. The cubic root of 8030512681 is about 2002.5394975280.

Adding to 8030512681 its reverse (1862150308), we get a palindrome (9892662989).

The spelling of 8030512681 in words is "eight billion, thirty million, five hundred twelve thousand, six hundred eighty-one".