57671217391 has 2 divisors, whose sum is σ = 57671217392. Its totient is φ = 57671217390.

The previous prime is 57671217379. The next prime is 57671217437. The reversal of 57671217391 is 19371217675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57671217391 - 2³¹ = 55523733743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57671217991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28835608695 + 28835608696.

It is an arithmetic number, because the mean of its divisors is an integer number (28835608696).

Almost surely, 2^57671217391 is an apocalyptic number.

57671217391 is a deficient number, since it is larger than the sum of its proper divisors (1).

57671217391 is an equidigital number, since it uses as much as digits as its factorization.

57671217391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The spelling of 57671217391 in words is "fifty-seven billion, six hundred seventy-one million, two hundred seventeen thousand, three hundred ninety-one".