9771407422369 has 2 divisors, whose sum is σ = 9771407422370. Its totient is φ = 9771407422368.

The previous prime is 9771407422247. The next prime is 9771407422433. The reversal of 9771407422369 is 9632247041779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8984526656400 + 786880765969 = 2997420^2 + 887063^2 .

It is a cyclic number.

It is not a de Polignac number, because 9771407422369 - 2⁴¹ = 7572384166817 is a prime.

It is a super-2 number, since 2×9771407422369² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9771407422069) 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, 4885703711184 + 4885703711185.

It is an arithmetic number, because the mean of its divisors is an integer number (4885703711185).

Almost surely, 2^{9771407422369} is an apocalyptic number.

It is an amenable number.

9771407422369 is a deficient number, since it is larger than the sum of its proper divisors (1).

9771407422369 is an equidigital number, since it uses as much as digits as its factorization.

9771407422369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 9771407422369 in words is "nine trillion, seven hundred seventy-one billion, four hundred seven million, four hundred twenty-two thousand, three hundred sixty-nine".