441400378117 has 2 divisors, whose sum is σ = 441400378118. Its totient is φ = 441400378116.

The previous prime is 441400378109. The next prime is 441400378151. The reversal of 441400378117 is 711873004144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411690340161 + 29710037956 = 641631^2 + 172366^2 .

It is a cyclic number.

It is not a de Polignac number, because 441400378117 - 2³ = 441400378109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 441400378117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441400378157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220700189058 + 220700189059.

It is an arithmetic number, because the mean of its divisors is an integer number (220700189059).

Almost surely, 2^441400378117 is an apocalyptic number.

It is an amenable number.

441400378117 is a deficient number, since it is larger than the sum of its proper divisors (1).

441400378117 is an equidigital number, since it uses as much as digits as its factorization.

441400378117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 441400378117 in words is "four hundred forty-one billion, four hundred million, three hundred seventy-eight thousand, one hundred seventeen".