2857748886 has 12 divisors (see below), whose sum is σ = 6191789292. Its totient is φ = 952582956.

The previous prime is 2857748863. The next prime is 2857748893. The reversal of 2857748886 is 6888477582.

2857748886 is a `hidden beast` number, since 2 + 8 + 5 + 77 + 488 + 86 = 666.

2857748886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79381896 + ... + 79381931.

It is an arithmetic number, because the mean of its divisors is an integer number (515982441).

Almost surely, 2^2857748886 is an apocalyptic number.

2857748886 is an abundant number, since it is smaller than the sum of its proper divisors (3334040406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2857748886 is a wasteful number, since it uses less digits than its factorization.

2857748886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158763835 (or 158763832 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 63.

The square root of 2857748886 is about 53457.9169627848. The cubic root of 2857748886 is about 1419.0837317822.

The spelling of 2857748886 in words is "two billion, eight hundred fifty-seven million, seven hundred forty-eight thousand, eight hundred eighty-six".