2857171783297 has 12 divisors (see below), whose sum is σ = 3094211817900. Its totient is φ = 2637089914368.

The previous prime is 2857171783283. The next prime is 2857171783307. The reversal of 2857171783297 is 7923871717582.

It can be written as a sum of positive squares in 6 ways, for example, as 569890617921 + 2287281165376 = 754911^2 + 1512376^2 .

It is not a de Polignac number, because 2857171783297 - 2¹⁵ = 2857171750529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2857171783097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540213 + ... + 2450749.

It is an arithmetic number, because the mean of its divisors is an integer number (257850984825).

Almost surely, 2^{2857171783297} is an apocalyptic number.

It is an amenable number.

2857171783297 is a deficient number, since it is larger than the sum of its proper divisors (237040034603).

2857171783297 is a wasteful number, since it uses less digits than its factorization.

2857171783297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919412 (or 1919399 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 67.

The spelling of 2857171783297 in words is "two trillion, eight hundred fifty-seven billion, one hundred seventy-one million, seven hundred eighty-three thousand, two hundred ninety-seven".