57171633689 has 2 divisors, whose sum is σ = 57171633690. Its totient is φ = 57171633688.

The previous prime is 57171633677. The next prime is 57171633703. The reversal of 57171633689 is 98633617175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36177942025 + 20993691664 = 190205^2 + 144892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57171633689 is a prime.

It is not a weakly prime, because it can be changed into another prime (57171633889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28585816844 + 28585816845.

It is an arithmetic number, because the mean of its divisors is an integer number (28585816845).

Almost surely, 2^57171633689 is an apocalyptic number.

It is an amenable number.

57171633689 is a deficient number, since it is larger than the sum of its proper divisors (1).

57171633689 is an equidigital number, since it uses as much as digits as its factorization.

57171633689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 56.

The spelling of 57171633689 in words is "fifty-seven billion, one hundred seventy-one million, six hundred thirty-three thousand, six hundred eighty-nine".