2857051317 has 4 divisors (see below), whose sum is σ = 3809401760. Its totient is φ = 1904700876.

The previous prime is 2857051313. The next prime is 2857051349. The reversal of 2857051317 is 7131507582.

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 not a de Polignac number, because 2857051317 - 2² = 2857051313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857051313) 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, 476175217 + ... + 476175222.

It is an arithmetic number, because the mean of its divisors is an integer number (952350440).

Almost surely, 2^2857051317 is an apocalyptic number.

It is an amenable number.

2857051317 is a deficient number, since it is larger than the sum of its proper divisors (952350443).

2857051317 is an equidigital number, since it uses as much as digits as its factorization.

2857051317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952350442.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 2857051317 is about 53451.3920959969. The cubic root of 2857051317 is about 1418.9682575150.

Adding to 2857051317 its reverse (7131507582), we get a palindrome (9988558899).

The spelling of 2857051317 in words is "two billion, eight hundred fifty-seven million, fifty-one thousand, three hundred seventeen".