8975125681 has 2 divisors, whose sum is σ = 8975125682. Its totient is φ = 8975125680.

The previous prime is 8975125667. The next prime is 8975125739. The reversal of 8975125681 is 1865215798.

8975125681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7534240000 + 1440885681 = 86800^2 + 37959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8975125681 is a prime.

It is a super-2 number, since 2×8975125681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8975128681) 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 as a sum of consecutive naturals, namely, 4487562840 + 4487562841.

It is an arithmetic number, because the mean of its divisors is an integer number (4487562841).

Almost surely, 2^8975125681 is an apocalyptic number.

It is an amenable number.

8975125681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8975125681 is an equidigital number, since it uses as much as digits as its factorization.

8975125681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 52.

The square root of 8975125681 is about 94737.1399241079. The cubic root of 8975125681 is about 2078.1657338271.

The spelling of 8975125681 in words is "eight billion, nine hundred seventy-five million, one hundred twenty-five thousand, six hundred eighty-one".