8106658493 has 2 divisors, whose sum is σ = 8106658494. Its totient is φ = 8106658492.

The previous prime is 8106658451. The next prime is 8106658577. The reversal of 8106658493 is 3948566018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5570831044 + 2535827449 = 74638^2 + 50357^2 .

It is a cyclic number.

It is not a de Polignac number, because 8106658493 - 2¹⁰ = 8106657469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8106658433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4053329246 + 4053329247.

It is an arithmetic number, because the mean of its divisors is an integer number (4053329247).

Almost surely, 2^8106658493 is an apocalyptic number.

It is an amenable number.

8106658493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8106658493 is an equidigital number, since it uses as much as digits as its factorization.

8106658493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 8106658493 is about 90036.9840287867. The cubic root of 8106658493 is about 2008.8489976273.

The spelling of 8106658493 in words is "eight billion, one hundred six million, six hundred fifty-eight thousand, four hundred ninety-three".