57673618181 has 2 divisors, whose sum is σ = 57673618182. Its totient is φ = 57673618180.

The previous prime is 57673618129. The next prime is 57673618183. The reversal of 57673618181 is 18181637675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47641792900 + 10031825281 = 218270^2 + 100159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57673618181 is a prime.

It is a super-2 number, since 2×57673618181² (a number of 22 digits) contains 22 as substring.

Together with 57673618183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57673618183) 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, 28836809090 + 28836809091.

It is an arithmetic number, because the mean of its divisors is an integer number (28836809091).

Almost surely, 2^57673618181 is an apocalyptic number.

It is an amenable number.

57673618181 is a deficient number, since it is larger than the sum of its proper divisors (1).

57673618181 is an equidigital number, since it uses as much as digits as its factorization.

57673618181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 53.

The spelling of 57673618181 in words is "fifty-seven billion, six hundred seventy-three million, six hundred eighteen thousand, one hundred eighty-one".