52857195291 has 12 divisors (see below), whose sum is σ = 76359789168. Its totient is φ = 35233280784.

The previous prime is 52857195289. The next prime is 52857195299. The reversal of 52857195291 is 19259175825.

52857195291 is a `hidden beast` number, since 5 + 285 + 71 + 9 + 5 + 291 = 666.

It is not a de Polignac number, because 52857195291 - 2¹ = 52857195289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52857195299) 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 11 ways as a sum of consecutive naturals, for example, 334455 + ... + 466448.

It is an arithmetic number, because the mean of its divisors is an integer number (6363315764).

Almost surely, 2^52857195291 is an apocalyptic number.

52857195291 is a deficient number, since it is larger than the sum of its proper divisors (23502593877).

52857195291 is a wasteful number, since it uses less digits than its factorization.

52857195291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808242 (or 808239 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 54.

The spelling of 52857195291 in words is "fifty-two billion, eight hundred fifty-seven million, one hundred ninety-five thousand, two hundred ninety-one".