9984056851 has 2 divisors, whose sum is σ = 9984056852. Its totient is φ = 9984056850.

The previous prime is 9984056807. The next prime is 9984056861. The reversal of 9984056851 is 1586504899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9984056851 - 2⁷ = 9984056723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9984056792 and 9984056801.

It is not a weakly prime, because it can be changed into another prime (9984056861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4992028425 + 4992028426.

It is an arithmetic number, because the mean of its divisors is an integer number (4992028426).

Almost surely, 2^9984056851 is an apocalyptic number.

9984056851 is a deficient number, since it is larger than the sum of its proper divisors (1).

9984056851 is an equidigital number, since it uses as much as digits as its factorization.

9984056851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The square root of 9984056851 is about 99920.2524566466. The cubic root of 9984056851 is about 2153.2891319134.

The spelling of 9984056851 in words is "nine billion, nine hundred eighty-four million, fifty-six thousand, eight hundred fifty-one".