57426658609 has 2 divisors, whose sum is σ = 57426658610. Its totient is φ = 57426658608.

The previous prime is 57426658577. The next prime is 57426658657. The reversal of 57426658609 is 90685662475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51482248609 + 5944410000 = 226897^2 + 77100^2 .

It is a cyclic number.

It is not a de Polignac number, because 57426658609 - 2⁵ = 57426658577 is a prime.

It is a super-2 number, since 2×57426658609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57426658669) 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, 28713329304 + 28713329305.

It is an arithmetic number, because the mean of its divisors is an integer number (28713329305).

Almost surely, 2^57426658609 is an apocalyptic number.

It is an amenable number.

57426658609 is a deficient number, since it is larger than the sum of its proper divisors (1).

57426658609 is an equidigital number, since it uses as much as digits as its factorization.

57426658609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 57426658609 in words is "fifty-seven billion, four hundred twenty-six million, six hundred fifty-eight thousand, six hundred nine".