57217233911 has 2 divisors, whose sum is σ = 57217233912. Its totient is φ = 57217233910.

The previous prime is 57217233907. The next prime is 57217233923. The reversal of 57217233911 is 11933271275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57217233911 - 2² = 57217233907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57217233991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28608616955 + 28608616956.

It is an arithmetic number, because the mean of its divisors is an integer number (28608616956).

Almost surely, 2^57217233911 is an apocalyptic number.

57217233911 is a deficient number, since it is larger than the sum of its proper divisors (1).

57217233911 is an equidigital number, since it uses as much as digits as its factorization.

57217233911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 41.

The spelling of 57217233911 in words is "fifty-seven billion, two hundred seventeen million, two hundred thirty-three thousand, nine hundred eleven".