57201857871 has 4 divisors (see below), whose sum is σ = 76269143832. Its totient is φ = 38134571912.

The previous prime is 57201857857. The next prime is 57201857893. The reversal of 57201857871 is 17875810275.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57201857871 - 2⁶ = 57201857807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57201857171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9533642976 + ... + 9533642981.

It is an arithmetic number, because the mean of its divisors is an integer number (19067285958).

Almost surely, 2^57201857871 is an apocalyptic number.

57201857871 is a deficient number, since it is larger than the sum of its proper divisors (19067285961).

57201857871 is a wasteful number, since it uses less digits than its factorization.

57201857871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19067285960.

The product of its (nonzero) digits is 1097600, while the sum is 51.

The spelling of 57201857871 in words is "fifty-seven billion, two hundred one million, eight hundred fifty-seven thousand, eight hundred seventy-one".