57191140869 has 24 divisors (see below), whose sum is σ = 81024245568. Its totient is φ = 35875799040.

The previous prime is 57191140861. The next prime is 57191140873. The reversal of 57191140869 is 96804119175.

It is not a de Polignac number, because 57191140869 - 2³ = 57191140861 is a prime.

It is a super-2 number, since 2×57191140869² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57191140861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6877224 + ... + 6885534.

It is an arithmetic number, because the mean of its divisors is an integer number (3376010232).

Almost surely, 2^57191140869 is an apocalyptic number.

It is an amenable number.

57191140869 is a deficient number, since it is larger than the sum of its proper divisors (23833104699).

57191140869 is a wasteful number, since it uses less digits than its factorization.

57191140869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16285 (or 16268 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 57191140869 in words is "fifty-seven billion, one hundred ninety-one million, one hundred forty thousand, eight hundred sixty-nine".