9825604799 has 2 divisors, whose sum is σ = 9825604800. Its totient is φ = 9825604798.

The previous prime is 9825604771. The next prime is 9825604847. The reversal of 9825604799 is 9974065289.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9825604799 - 2⁸ = 9825604543 is a prime.

It is a super-2 number, since 2×9825604799² (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 (9825604769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4912802399 + 4912802400.

It is an arithmetic number, because the mean of its divisors is an integer number (4912802400).

Almost surely, 2^9825604799 is an apocalyptic number.

9825604799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9825604799 is an equidigital number, since it uses as much as digits as its factorization.

9825604799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The square root of 9825604799 is about 99124.1887684333. The cubic root of 9825604799 is about 2141.8370692080.

The spelling of 9825604799 in words is "nine billion, eight hundred twenty-five million, six hundred four thousand, seven hundred ninety-nine".