2857145777806 has 16 divisors (see below), whose sum is σ = 4459487275584. Its totient is φ = 1371797006944.

The previous prime is 2857145777791. The next prime is 2857145777873. The reversal of 2857145777806 is 6087775417582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286741885 + ... + 286751848.

It is an arithmetic number, because the mean of its divisors is an integer number (278717954724).

Almost surely, 2^{2857145777806} is an apocalyptic number.

2857145777806 is a deficient number, since it is larger than the sum of its proper divisors (1602341497778).

2857145777806 is a wasteful number, since it uses less digits than its factorization.

2857145777806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573493835.

The product of its (nonzero) digits is 184396800, while the sum is 67.

The spelling of 2857145777806 in words is "two trillion, eight hundred fifty-seven billion, one hundred forty-five million, seven hundred seventy-seven thousand, eight hundred six".