4921760989 has 2 divisors, whose sum is σ = 4921760990. Its totient is φ = 4921760988.

The previous prime is 4921760953. The next prime is 4921760999. The reversal of 4921760989 is 9890671294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4557600100 + 364160889 = 67510^2 + 19083^2 .

It is a cyclic number.

It is not a de Polignac number, because 4921760989 - 2⁷ = 4921760861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4921760999) by changing a digit.

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, 2460880494 + 2460880495.

It is an arithmetic number, because the mean of its divisors is an integer number (2460880495).

Almost surely, 2^4921760989 is an apocalyptic number.

It is an amenable number.

4921760989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921760989 is an equidigital number, since it uses as much as digits as its factorization.

4921760989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 4921760989 is about 70155.2634447338. The cubic root of 4921760989 is about 1701.0098946419.

The spelling of 4921760989 in words is "four billion, nine hundred twenty-one million, seven hundred sixty thousand, nine hundred eighty-nine".