9691504489 has 2 divisors, whose sum is σ = 9691504490. Its totient is φ = 9691504488.

The previous prime is 9691504429. The next prime is 9691504573. The reversal of 9691504489 is 9844051969.

9691504489 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., 7035854400 + 2655650089 = 83880^2 + 51533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9691504489 is a prime.

It is a super-2 number, since 2×9691504489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9691504429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4845752244 + 4845752245.

It is an arithmetic number, because the mean of its divisors is an integer number (4845752245).

Almost surely, 2^9691504489 is an apocalyptic number.

It is an amenable number.

9691504489 is a deficient number, since it is larger than the sum of its proper divisors (1).

9691504489 is an equidigital number, since it uses as much as digits as its factorization.

9691504489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 9691504489 is about 98445.4391477838. The cubic root of 9691504489 is about 2132.0484374317.

The spelling of 9691504489 in words is "nine billion, six hundred ninety-one million, five hundred four thousand, four hundred eighty-nine".