401214866447 has 2 divisors, whose sum is σ = 401214866448. Its totient is φ = 401214866446.

The previous prime is 401214866389. The next prime is 401214866477. The reversal of 401214866447 is 744668412104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401214866447 - 2¹⁰ = 401214865423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401214866477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200607433223 + 200607433224.

It is an arithmetic number, because the mean of its divisors is an integer number (200607433224).

Almost surely, 2^401214866447 is an apocalyptic number.

401214866447 is a deficient number, since it is larger than the sum of its proper divisors (1).

401214866447 is an equidigital number, since it uses as much as digits as its factorization.

401214866447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 401214866447 in words is "four hundred one billion, two hundred fourteen million, eight hundred sixty-six thousand, four hundred forty-seven".