5651686851 has 8 divisors (see below), whose sum is σ = 7536163344. Its totient is φ = 3767500800.

The previous prime is 5651686829. The next prime is 5651686867. The reversal of 5651686851 is 1586861565.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5651686851 - 2¹⁵ = 5651654083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5651686794 and 5651686803.

It is not an unprimeable number, because it can be changed into a prime (5651646851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22206 + ... + 108611.

It is an arithmetic number, because the mean of its divisors is an integer number (942020418).

Almost surely, 2^5651686851 is an apocalyptic number.

5651686851 is a deficient number, since it is larger than the sum of its proper divisors (1884476493).

5651686851 is a wasteful number, since it uses less digits than its factorization.

5651686851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145221.

The product of its digits is 1728000, while the sum is 51.

The square root of 5651686851 is about 75177.7018204201. The cubic root of 5651686851 is about 1781.2547281524.

The spelling of 5651686851 in words is "five billion, six hundred fifty-one million, six hundred eighty-six thousand, eight hundred fifty-one".