850117711057 has 4 divisors (see below), whose sum is σ = 850329873216. Its totient is φ = 849905548900.

The previous prime is 850117711013. The next prime is 850117711067. The reversal of 850117711057 is 750117711058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 850117711057 - 2⁷ = 850117710929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850117711067) 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, 106075069 + ... + 106083082.

It is an arithmetic number, because the mean of its divisors is an integer number (212582468304).

Almost surely, 2^850117711057 is an apocalyptic number.

It is an amenable number.

850117711057 is a deficient number, since it is larger than the sum of its proper divisors (212162159).

850117711057 is a wasteful number, since it uses less digits than its factorization.

850117711057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212162158.

The product of its (nonzero) digits is 68600, while the sum is 43.

Subtracting from 850117711057 its reverse (750117711058), we obtain a palindrome (99999999999).

The spelling of 850117711057 in words is "eight hundred fifty billion, one hundred seventeen million, seven hundred eleven thousand, fifty-seven".