57842508197 has 4 divisors (see below), whose sum is σ = 58230713100. Its totient is φ = 57454303296.

The previous prime is 57842508131. The next prime is 57842508209. The reversal of 57842508197 is 79180524875.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2642885281 + 55199622916 = 51409^2 + 234946^2 .

It is a cyclic number.

It is not a de Polignac number, because 57842508197 - 2²⁶ = 57775399333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57842508107) 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, 194102228 + ... + 194102525.

It is an arithmetic number, because the mean of its divisors is an integer number (14557678275).

Almost surely, 2^57842508197 is an apocalyptic number.

It is an amenable number.

57842508197 is a deficient number, since it is larger than the sum of its proper divisors (388204903).

57842508197 is a wasteful number, since it uses less digits than its factorization.

57842508197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388204902.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 57842508197 in words is "fifty-seven billion, eight hundred forty-two million, five hundred eight thousand, one hundred ninety-seven".