5608821851 has 2 divisors, whose sum is σ = 5608821852. Its totient is φ = 5608821850.

The previous prime is 5608821817. The next prime is 5608821857. The reversal of 5608821851 is 1581288065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5608821851 - 2⁶ = 5608821787 is a prime.

It is not a weakly prime, because it can be changed into another prime (5608821857) 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, 2804410925 + 2804410926.

It is an arithmetic number, because the mean of its divisors is an integer number (2804410926).

Almost surely, 2^5608821851 is an apocalyptic number.

5608821851 is a deficient number, since it is larger than the sum of its proper divisors (1).

5608821851 is an equidigital number, since it uses as much as digits as its factorization.

5608821851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153600, while the sum is 44.

The square root of 5608821851 is about 74892.0680112387. The cubic root of 5608821851 is about 1776.7400091086.

The spelling of 5608821851 in words is "five billion, six hundred eight million, eight hundred twenty-one thousand, eight hundred fifty-one".