2856686914 has 4 divisors (see below), whose sum is σ = 4285030374. Its totient is φ = 1428343456.

The previous prime is 2856686891. The next prime is 2856686923. The reversal of 2856686914 is 4196866582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4196866582 = 2 ⋅2098433291.

It can be written as a sum of positive squares in only one way, i.e., 1805825025 + 1050861889 = 42495^2 + 32417^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714171727 + ... + 714171730.

Almost surely, 2^2856686914 is an apocalyptic number.

2856686914 is a deficient number, since it is larger than the sum of its proper divisors (1428343460).

2856686914 is a wasteful number, since it uses less digits than its factorization.

2856686914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428343459.

The product of its digits is 4976640, while the sum is 55.

The square root of 2856686914 is about 53447.9832547497. The cubic root of 2856686914 is about 1418.9079274500.

The spelling of 2856686914 in words is "two billion, eight hundred fifty-six million, six hundred eighty-six thousand, nine hundred fourteen".