4538772989 has 2 divisors, whose sum is σ = 4538772990. Its totient is φ = 4538772988.

The previous prime is 4538772983. The next prime is 4538773009. The reversal of 4538772989 is 9892778354.

4538772989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4444488889 + 94284100 = 66667^2 + 9710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4538772989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4538772983) 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, 2269386494 + 2269386495.

It is an arithmetic number, because the mean of its divisors is an integer number (2269386495).

Almost surely, 2^4538772989 is an apocalyptic number.

It is an amenable number.

4538772989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4538772989 is an equidigital number, since it uses as much as digits as its factorization.

4538772989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The square root of 4538772989 is about 67370.4162745043. The cubic root of 4538772989 is about 1655.6917592651.

The spelling of 4538772989 in words is "four billion, five hundred thirty-eight million, seven hundred seventy-two thousand, nine hundred eighty-nine".