8069428057 has 2 divisors, whose sum is σ = 8069428058. Its totient is φ = 8069428056.

The previous prime is 8069428051. The next prime is 8069428091. The reversal of 8069428057 is 7508249608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7726585801 + 342842256 = 87901^2 + 18516^2 .

It is a cyclic number.

It is not a de Polignac number, because 8069428057 - 2⁷ = 8069427929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8069428057.

It is not a weakly prime, because it can be changed into another prime (8069428051) 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, 4034714028 + 4034714029.

It is an arithmetic number, because the mean of its divisors is an integer number (4034714029).

Almost surely, 2^8069428057 is an apocalyptic number.

It is an amenable number.

8069428057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8069428057 is an equidigital number, since it uses as much as digits as its factorization.

8069428057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 8069428057 is about 89829.9953078035. The cubic root of 8069428057 is about 2005.7690146515.

The spelling of 8069428057 in words is "eight billion, sixty-nine million, four hundred twenty-eight thousand, fifty-seven".