9338749789 has 2 divisors, whose sum is σ = 9338749790. Its totient is φ = 9338749788.

The previous prime is 9338749781. The next prime is 9338749807. The reversal of 9338749789 is 9879478339.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8979078564 + 359671225 = 94758^2 + 18965^2 .

It is a cyclic number.

It is not a de Polignac number, because 9338749789 - 2³ = 9338749781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9338749781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4669374894 + 4669374895.

It is an arithmetic number, because the mean of its divisors is an integer number (4669374895).

Almost surely, 2^9338749789 is an apocalyptic number.

It is an amenable number.

9338749789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9338749789 is an equidigital number, since it uses as much as digits as its factorization.

9338749789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 67.

The square root of 9338749789 is about 96637.2070633253. The cubic root of 9338749789 is about 2105.8604095245.

The spelling of 9338749789 in words is "nine billion, three hundred thirty-eight million, seven hundred forty-nine thousand, seven hundred eighty-nine".