57353818861 has 2 divisors, whose sum is σ = 57353818862. Its totient is φ = 57353818860.

The previous prime is 57353818829. The next prime is 57353818883. The reversal of 57353818861 is 16881835375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57135340900 + 218477961 = 239030^2 + 14781^2 .

It is a cyclic number.

It is not a de Polignac number, because 57353818861 - 2⁵ = 57353818829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57353818811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28676909430 + 28676909431.

It is an arithmetic number, because the mean of its divisors is an integer number (28676909431).

Almost surely, 2^57353818861 is an apocalyptic number.

It is an amenable number.

57353818861 is a deficient number, since it is larger than the sum of its proper divisors (1).

57353818861 is an equidigital number, since it uses as much as digits as its factorization.

57353818861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 55.

The spelling of 57353818861 in words is "fifty-seven billion, three hundred fifty-three million, eight hundred eighteen thousand, eight hundred sixty-one".