57271917911 has 16 divisors (see below), whose sum is σ = 64983337440. Its totient is φ = 50037886080.

The previous prime is 57271917887. The next prime is 57271917917. The reversal of 57271917911 is 11971917275.

It is not a de Polignac number, because 57271917911 - 2¹⁰ = 57271916887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57271917911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57271917917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163901 + ... + 376041.

It is an arithmetic number, because the mean of its divisors is an integer number (4061458590).

Almost surely, 2^57271917911 is an apocalyptic number.

57271917911 is a deficient number, since it is larger than the sum of its proper divisors (7711419529).

57271917911 is a wasteful number, since it uses less digits than its factorization.

57271917911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213266.

The product of its digits is 277830, while the sum is 50.

The spelling of 57271917911 in words is "fifty-seven billion, two hundred seventy-one million, nine hundred seventeen thousand, nine hundred eleven".