5851681678 has 4 divisors (see below), whose sum is σ = 8777522520. Its totient is φ = 2925840838.

The previous prime is 5851681637. The next prime is 5851681697. The reversal of 5851681678 is 8761861585.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8761861585 = 5 ⋅1752372317.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1462920418 + ... + 1462920421.

It is an arithmetic number, because the mean of its divisors is an integer number (2194380630).

Almost surely, 2^5851681678 is an apocalyptic number.

5851681678 is a deficient number, since it is larger than the sum of its proper divisors (2925840842).

5851681678 is a wasteful number, since it uses less digits than its factorization.

5851681678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925840841.

The product of its digits is 3225600, while the sum is 55.

The square root of 5851681678 is about 76496.2853869389. The cubic root of 5851681678 is about 1802.0225904338.

The spelling of 5851681678 in words is "five billion, eight hundred fifty-one million, six hundred eighty-one thousand, six hundred seventy-eight".