9768149189 has 2 divisors, whose sum is σ = 9768149190. Its totient is φ = 9768149188.

The previous prime is 9768149161. The next prime is 9768149233. The reversal of 9768149189 is 9819418679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9576188164 + 191961025 = 97858^2 + 13855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9768149189 is a prime.

It is a super-2 number, since 2×9768149189² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9768149129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4884074594 + 4884074595.

It is an arithmetic number, because the mean of its divisors is an integer number (4884074595).

Almost surely, 2^9768149189 is an apocalyptic number.

It is an amenable number.

9768149189 is a deficient number, since it is larger than the sum of its proper divisors (1).

9768149189 is an equidigital number, since it uses as much as digits as its factorization.

9768149189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 62.

The square root of 9768149189 is about 98833.9475534596. The cubic root of 9768149189 is about 2137.6540797198.

The spelling of 9768149189 in words is "nine billion, seven hundred sixty-eight million, one hundred forty-nine thousand, one hundred eighty-nine".