57185609823 has 10 divisors (see below), whose sum is σ = 85425417264. Its totient is φ = 38123739828.

The previous prime is 57185609813. The next prime is 57185609861. The reversal of 57185609823 is 32890658175.

57185609823 is a `hidden beast` number, since 5 + 7 + 1 + 8 + 5 + 609 + 8 + 23 = 666.

It is not a de Polignac number, because 57185609823 - 2⁴ = 57185609807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57185609823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57185609813) 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 9 ways as a sum of consecutive naturals, for example, 352997511 + ... + 352997672.

Almost surely, 2^57185609823 is an apocalyptic number.

57185609823 is a deficient number, since it is larger than the sum of its proper divisors (28239807441).

57185609823 is an equidigital number, since it uses as much as digits as its factorization.

57185609823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705995195 (or 705995186 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 57185609823 in words is "fifty-seven billion, one hundred eighty-five million, six hundred nine thousand, eight hundred twenty-three".