9456738491 has 2 divisors, whose sum is σ = 9456738492. Its totient is φ = 9456738490.

The previous prime is 9456738419. The next prime is 9456738497. The reversal of 9456738491 is 1948376549.

9456738491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (9456738419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9456738491 - 2¹⁸ = 9456476347 is a prime.

It is not a weakly prime, because it can be changed into another prime (9456738497) 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, 4728369245 + 4728369246.

It is an arithmetic number, because the mean of its divisors is an integer number (4728369246).

Almost surely, 2^9456738491 is an apocalyptic number.

9456738491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9456738491 is an equidigital number, since it uses as much as digits as its factorization.

9456738491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The square root of 9456738491 is about 97245.7633575880. The cubic root of 9456738491 is about 2114.6920204250.

The spelling of 9456738491 in words is "nine billion, four hundred fifty-six million, seven hundred thirty-eight thousand, four hundred ninety-one".