2857245685 has 16 divisors (see below), whose sum is σ = 3925570176. Its totient is φ = 1955723328.

The previous prime is 2857245659. The next prime is 2857245689. The reversal of 2857245685 is 5865427582.

It is a cyclic number.

It is not a de Polignac number, because 2857245685 - 2²¹ = 2855148533 is a prime.

It is a super-2 number, since 2×2857245685² = 16327705808902238450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857245689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53787 + ... + 92776.

It is an arithmetic number, because the mean of its divisors is an integer number (245348136).

Almost surely, 2^2857245685 is an apocalyptic number.

It is an amenable number.

2857245685 is a deficient number, since it is larger than the sum of its proper divisors (1068324491).

2857245685 is a wasteful number, since it uses less digits than its factorization.

2857245685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147132.

The product of its digits is 5376000, while the sum is 52.

The square root of 2857245685 is about 53453.2102403588. The cubic root of 2857245685 is about 1419.0004347189. Note that the first 3 decimals are identical.

The spelling of 2857245685 in words is "two billion, eight hundred fifty-seven million, two hundred forty-five thousand, six hundred eighty-five".