401346546405089 has 2 divisors, whose sum is σ = 401346546405090. Its totient is φ = 401346546405088.

The previous prime is 401346546405083. The next prime is 401346546405109. The reversal of 401346546405089 is 980504645643104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201869537286400 + 199477009118689 = 14208080^2 + 14123633^2 .

It is a cyclic number.

It is not a de Polignac number, because 401346546405089 - 2¹⁶ = 401346546339553 is a prime.

It is a super-2 number, since 2×401346546405089² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401346546405083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200673273202544 + 200673273202545.

It is an arithmetic number, because the mean of its divisors is an integer number (200673273202545).

Almost surely, 2^{401346546405089} is an apocalyptic number.

It is an amenable number.

401346546405089 is a deficient number, since it is larger than the sum of its proper divisors (1).

401346546405089 is an equidigital number, since it uses as much as digits as its factorization.

401346546405089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49766400, while the sum is 59.

The spelling of 401346546405089 in words is "four hundred one trillion, three hundred forty-six billion, five hundred forty-six million, four hundred five thousand, eighty-nine".