8128364593 has 2 divisors, whose sum is σ = 8128364594. Its totient is φ = 8128364592.

The previous prime is 8128364561. The next prime is 8128364603. The reversal of 8128364593 is 3954638218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7943622129 + 184742464 = 89127^2 + 13592^2 .

It is a cyclic number.

It is not a de Polignac number, because 8128364593 - 2⁵ = 8128364561 is a prime.

It is not a weakly prime, because it can be changed into another prime (8128464593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4064182296 + 4064182297.

It is an arithmetic number, because the mean of its divisors is an integer number (4064182297).

Almost surely, 2^8128364593 is an apocalyptic number.

It is an amenable number.

8128364593 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128364593 is an equidigital number, since it uses as much as digits as its factorization.

8128364593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 49.

The square root of 8128364593 is about 90157.4433588265. The cubic root of 8128364593 is about 2010.6403406038.

The spelling of 8128364593 in words is "eight billion, one hundred twenty-eight million, three hundred sixty-four thousand, five hundred ninety-three".