65857675857 has 8 divisors (see below), whose sum is σ = 89951947680. Its totient is φ = 42834260640.

The previous prime is 65857675843. The next prime is 65857675921. The reversal of 65857675857 is 75857675856.

65857675857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65857675857 - 2²⁰ = 65856627281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65857675791 and 65857675800.

It is not an unprimeable number, because it can be changed into a prime (65857675757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267714007 + ... + 267714252.

It is an arithmetic number, because the mean of its divisors is an integer number (11243993460).

Almost surely, 2^65857675857 is an apocalyptic number.

It is an amenable number.

65857675857 is a deficient number, since it is larger than the sum of its proper divisors (24094271823).

65857675857 is a wasteful number, since it uses less digits than its factorization.

65857675857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535428303.

The product of its digits is 493920000, while the sum is 69.

Subtracting 65857675857 from its reverse (75857675856), we obtain a palindrome (9999999999).

The spelling of 65857675857 in words is "sixty-five billion, eight hundred fifty-seven million, six hundred seventy-five thousand, eight hundred fifty-seven".