401214866389 has 2 divisors, whose sum is σ = 401214866390. Its totient is φ = 401214866388.

The previous prime is 401214866387. The next prime is 401214866447. The reversal of 401214866389 is 983668412104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229680562500 + 171534303889 = 479250^2 + 414167^2 .

It is a cyclic number.

It is not a de Polignac number, because 401214866389 - 2¹ = 401214866387 is a prime.

Together with 401214866387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401214866387) 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, 200607433194 + 200607433195.

It is an arithmetic number, because the mean of its divisors is an integer number (200607433195).

Almost surely, 2^401214866389 is an apocalyptic number.

It is an amenable number.

401214866389 is a deficient number, since it is larger than the sum of its proper divisors (1).

401214866389 is an equidigital number, since it uses as much as digits as its factorization.

401214866389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 401214866389 in words is "four hundred one billion, two hundred fourteen million, eight hundred sixty-six thousand, three hundred eighty-nine".