57828581509 has 2 divisors, whose sum is σ = 57828581510. Its totient is φ = 57828581508.

The previous prime is 57828581467. The next prime is 57828581537. The reversal of 57828581509 is 90518582875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29876085409 + 27952496100 = 172847^2 + 167190^2 .

It is a cyclic number.

It is not a de Polignac number, because 57828581509 - 2¹¹ = 57828579461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57828581599) 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, 28914290754 + 28914290755.

It is an arithmetic number, because the mean of its divisors is an integer number (28914290755).

Almost surely, 2^57828581509 is an apocalyptic number.

It is an amenable number.

57828581509 is a deficient number, since it is larger than the sum of its proper divisors (1).

57828581509 is an equidigital number, since it uses as much as digits as its factorization.

57828581509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 58.

The spelling of 57828581509 in words is "fifty-seven billion, eight hundred twenty-eight million, five hundred eighty-one thousand, five hundred nine".