404441210881 has 2 divisors, whose sum is σ = 404441210882. Its totient is φ = 404441210880.

The previous prime is 404441210839. The next prime is 404441210897. The reversal of 404441210881 is 188012144404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377210930625 + 27230280256 = 614175^2 + 165016^2 .

It is a cyclic number.

It is not a de Polignac number, because 404441210881 - 2³¹ = 402293727233 is a prime.

It is a super-2 number, since 2×404441210881² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404441210881.

It is not a weakly prime, because it can be changed into another prime (404441210081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202220605440 + 202220605441.

It is an arithmetic number, because the mean of its divisors is an integer number (202220605441).

Almost surely, 2^404441210881 is an apocalyptic number.

It is an amenable number.

404441210881 is a deficient number, since it is larger than the sum of its proper divisors (1).

404441210881 is an equidigital number, since it uses as much as digits as its factorization.

404441210881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32768, while the sum is 37.

The spelling of 404441210881 in words is "four hundred four billion, four hundred forty-one million, two hundred ten thousand, eight hundred eighty-one".