402144441411 has 4 divisors (see below), whose sum is σ = 536192588552. Its totient is φ = 268096294272.

The previous prime is 402144441397. The next prime is 402144441539. The reversal of 402144441411 is 114144441204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 402144441411 - 2¹⁰ = 402144440387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402144441011) 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 in 3 ways as a sum of consecutive naturals, for example, 67024073566 + ... + 67024073571.

It is an arithmetic number, because the mean of its divisors is an integer number (134048147138).

Almost surely, 2^402144441411 is an apocalyptic number.

402144441411 is a deficient number, since it is larger than the sum of its proper divisors (134048147141).

402144441411 is a wasteful number, since it uses less digits than its factorization.

402144441411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134048147140.

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 402144441411 its reverse (114144441204), we get a palindrome (516288882615).

The spelling of 402144441411 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-one thousand, four hundred eleven".