2857897886 has 16 divisors (see below), whose sum is σ = 4382524224. Its totient is φ = 1397118624.

The previous prime is 2857897879. The next prime is 2857897937. The reversal of 2857897886 is 6887987582.

2857897886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 80216 + ... + 110228.

It is an arithmetic number, because the mean of its divisors is an integer number (273907764).

Almost surely, 2^2857897886 is an apocalyptic number.

2857897886 is a deficient number, since it is larger than the sum of its proper divisors (1524626338).

2857897886 is a wasteful number, since it uses less digits than its factorization.

2857897886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31075.

The product of its digits is 108380160, while the sum is 68.

The square root of 2857897886 is about 53459.3105642039. The cubic root of 2857897886 is about 1419.1083945278.

The spelling of 2857897886 in words is "two billion, eight hundred fifty-seven million, eight hundred ninety-seven thousand, eight hundred eighty-six".