404144014187 has 2 divisors, whose sum is σ = 404144014188. Its totient is φ = 404144014186.

The previous prime is 404144014163. The next prime is 404144014189. The reversal of 404144014187 is 781410441404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404144014187 - 2¹² = 404144010091 is a prime.

Together with 404144014189, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404144014187.

It is not a weakly prime, because it can be changed into another prime (404144014189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202072007093 + 202072007094.

It is an arithmetic number, because the mean of its divisors is an integer number (202072007094).

Almost surely, 2^404144014187 is an apocalyptic number.

404144014187 is a deficient number, since it is larger than the sum of its proper divisors (1).

404144014187 is an equidigital number, since it uses as much as digits as its factorization.

404144014187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 38.

The spelling of 404144014187 in words is "four hundred four billion, one hundred forty-four million, fourteen thousand, one hundred eighty-seven".