857299885747775 has 6 divisors (see below), whose sum is σ = 1063051858327272. Its totient is φ = 685839908598200.

The previous prime is 857299885747769. The next prime is 857299885747819. The reversal of 857299885747775 is 577747588992758.

It is a happy number.

It is not a de Polignac number, because 857299885747775 - 2¹⁰ = 857299885746751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17145997714931 + ... + 17145997714980.

It is an arithmetic number, because the mean of its divisors is an integer number (177175309721212).

Almost surely, 2^{857299885747775} is an apocalyptic number.

857299885747775 is a deficient number, since it is larger than the sum of its proper divisors (205751972579497).

857299885747775 is a wasteful number, since it uses less digits than its factorization.

857299885747775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34291995429921 (or 34291995429916 counting only the distinct ones).

The product of its digits is 697019904000, while the sum is 98.

The spelling of 857299885747775 in words is "eight hundred fifty-seven trillion, two hundred ninety-nine billion, eight hundred eighty-five million, seven hundred forty-seven thousand, seven hundred seventy-five".