57705788081 has 2 divisors, whose sum is σ = 57705788082. Its totient is φ = 57705788080.

The previous prime is 57705788059. The next prime is 57705788099. The reversal of 57705788081 is 18088750775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35225283856 + 22480504225 = 187684^2 + 149935^2 .

It is a cyclic number.

It is not a de Polignac number, because 57705788081 - 2³⁴ = 40525918897 is a prime.

It is a super-2 number, since 2×57705788081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57705788051) 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, 28852894040 + 28852894041.

It is an arithmetic number, because the mean of its divisors is an integer number (28852894041).

Almost surely, 2^57705788081 is an apocalyptic number.

It is an amenable number.

57705788081 is a deficient number, since it is larger than the sum of its proper divisors (1).

57705788081 is an equidigital number, since it uses as much as digits as its factorization.

57705788081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4390400, while the sum is 56.

The spelling of 57705788081 in words is "fifty-seven billion, seven hundred five million, seven hundred eighty-eight thousand, eighty-one".