8102642293 has 2 divisors, whose sum is σ = 8102642294. Its totient is φ = 8102642292.

The previous prime is 8102642269. The next prime is 8102642297. The reversal of 8102642293 is 3922462018.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7140588004 + 962054289 = 84502^2 + 31017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8102642293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8102642297) 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, 4051321146 + 4051321147.

It is an arithmetic number, because the mean of its divisors is an integer number (4051321147).

Almost surely, 2^8102642293 is an apocalyptic number.

It is an amenable number.

8102642293 is a deficient number, since it is larger than the sum of its proper divisors (1).

8102642293 is an equidigital number, since it uses as much as digits as its factorization.

8102642293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 8102642293 is about 90014.6782086122. The cubic root of 8102642293 is about 2008.5172015670.

The spelling of 8102642293 in words is "eight billion, one hundred two million, six hundred forty-two thousand, two hundred ninety-three".