9853378553443 has 2 divisors, whose sum is σ = 9853378553444. Its totient is φ = 9853378553442.

The previous prime is 9853378553371. The next prime is 9853378553477. The reversal of 9853378553443 is 3443558733589.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9853378553443 is a prime.

It is not a weakly prime, because it can be changed into another prime (9853378556443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4926689276721 + 4926689276722.

It is an arithmetic number, because the mean of its divisors is an integer number (4926689276722).

Almost surely, 2^{9853378553443} is an apocalyptic number.

9853378553443 is a deficient number, since it is larger than the sum of its proper divisors (1).

9853378553443 is an equidigital number, since it uses as much as digits as its factorization.

9853378553443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184000, while the sum is 67.

The spelling of 9853378553443 in words is "nine trillion, eight hundred fifty-three billion, three hundred seventy-eight million, five hundred fifty-three thousand, four hundred forty-three".