9421168741801 has 2 divisors, whose sum is σ = 9421168741802. Its totient is φ = 9421168741800.

The previous prime is 9421168741799. The next prime is 9421168741913. The reversal of 9421168741801 is 1081478611249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6399134181801 + 3022034560000 = 2529651^2 + 1738400^2 .

It is a cyclic number.

It is not a de Polignac number, because 9421168741801 - 2¹ = 9421168741799 is a prime.

It is a super-2 number, since 2×9421168741801² (a number of 27 digits) contains 22 as substring.

Together with 9421168741799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9421168741301) 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, 4710584370900 + 4710584370901.

It is an arithmetic number, because the mean of its divisors is an integer number (4710584370901).

Almost surely, 2^{9421168741801} is an apocalyptic number.

It is an amenable number.

9421168741801 is a deficient number, since it is larger than the sum of its proper divisors (1).

9421168741801 is an equidigital number, since it uses as much as digits as its factorization.

9421168741801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 9421168741801 in words is "nine trillion, four hundred twenty-one billion, one hundred sixty-eight million, seven hundred forty-one thousand, eight hundred one".