9969433668451 has 2 divisors, whose sum is σ = 9969433668452. Its totient is φ = 9969433668450.

The previous prime is 9969433668391. The next prime is 9969433668479. The reversal of 9969433668451 is 1548663349699.

It is a strong prime.

It is an emirp because it is prime and its reverse (1548663349699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9969433668451 - 2⁷ = 9969433668323 is a prime.

It is not a weakly prime, because it can be changed into another prime (9969433669451) 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, 4984716834225 + 4984716834226.

It is an arithmetic number, because the mean of its divisors is an integer number (4984716834226).

Almost surely, 2^{9969433668451} is an apocalyptic number.

9969433668451 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969433668451 is an equidigital number, since it uses as much as digits as its factorization.

9969433668451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 906992640, while the sum is 73.

The spelling of 9969433668451 in words is "nine trillion, nine hundred sixty-nine billion, four hundred thirty-three million, six hundred sixty-eight thousand, four hundred fifty-one".