9645455441 has 2 divisors, whose sum is σ = 9645455442. Its totient is φ = 9645455440.

The previous prime is 9645455389. The next prime is 9645455509. The reversal of 9645455441 is 1445545469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8327475025 + 1317980416 = 91255^2 + 36304^2 .

It is a cyclic number.

It is not a de Polignac number, because 9645455441 - 2⁶ = 9645455377 is a prime.

It is not a weakly prime, because it can be changed into another prime (9645445441) 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, 4822727720 + 4822727721.

It is an arithmetic number, because the mean of its divisors is an integer number (4822727721).

Almost surely, 2^9645455441 is an apocalyptic number.

It is an amenable number.

9645455441 is a deficient number, since it is larger than the sum of its proper divisors (1).

9645455441 is an equidigital number, since it uses as much as digits as its factorization.

9645455441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728000, while the sum is 47.

The square root of 9645455441 is about 98211.2796016832. The cubic root of 9645455441 is about 2128.6662755558. Note that the first 3 decimals are identical.

The spelling of 9645455441 in words is "nine billion, six hundred forty-five million, four hundred fifty-five thousand, four hundred forty-one".