5651642851 has 2 divisors, whose sum is σ = 5651642852. Its totient is φ = 5651642850.

The previous prime is 5651642849. The next prime is 5651642881. The reversal of 5651642851 is 1582461565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5651642851 - 2¹ = 5651642849 is a prime.

Together with 5651642849, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5651642798 and 5651642807.

It is not a weakly prime, because it can be changed into another prime (5651642881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825821425 + 2825821426.

It is an arithmetic number, because the mean of its divisors is an integer number (2825821426).

Almost surely, 2^5651642851 is an apocalyptic number.

5651642851 is a deficient number, since it is larger than the sum of its proper divisors (1).

5651642851 is an equidigital number, since it uses as much as digits as its factorization.

5651642851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 43.

The square root of 5651642851 is about 75177.4091798859. The cubic root of 5651642851 is about 1781.2501056144.

The spelling of 5651642851 in words is "five billion, six hundred fifty-one million, six hundred forty-two thousand, eight hundred fifty-one".