9788232491 has 2 divisors, whose sum is σ = 9788232492. Its totient is φ = 9788232490.

The previous prime is 9788232473. The next prime is 9788232497. The reversal of 9788232491 is 1942328879.

9788232491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9788232491 - 2⁶ = 9788232427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9788232497) 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, 4894116245 + 4894116246.

It is an arithmetic number, because the mean of its divisors is an integer number (4894116246).

Almost surely, 2^9788232491 is an apocalyptic number.

9788232491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9788232491 is an equidigital number, since it uses as much as digits as its factorization.

9788232491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 9788232491 is about 98935.4966177458. The cubic root of 9788232491 is about 2139.1180815164.

The spelling of 9788232491 in words is "nine billion, seven hundred eighty-eight million, two hundred thirty-two thousand, four hundred ninety-one".