2851993874 has 4 divisors (see below), whose sum is σ = 4277990814. Its totient is φ = 1425996936.

The previous prime is 2851993873. The next prime is 2851993889. The reversal of 2851993874 is 4783991582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1971981649 + 880012225 = 44407^2 + 29665^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2851993871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712998467 + ... + 712998470.

Almost surely, 2^2851993874 is an apocalyptic number.

2851993874 is a deficient number, since it is larger than the sum of its proper divisors (1425996940).

2851993874 is a wasteful number, since it uses less digits than its factorization.

2851993874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425996939.

The product of its digits is 4354560, while the sum is 56.

The square root of 2851993874 is about 53404.0623361182. The cubic root of 2851993874 is about 1418.1304952107.

The spelling of 2851993874 in words is "two billion, eight hundred fifty-one million, nine hundred ninety-three thousand, eight hundred seventy-four".