404241168493 has 2 divisors, whose sum is σ = 404241168494. Its totient is φ = 404241168492.

The previous prime is 404241168451. The next prime is 404241168503. The reversal of 404241168493 is 394861142404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319165112809 + 85076055684 = 564947^2 + 291678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404241168493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404241168293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202120584246 + 202120584247.

It is an arithmetic number, because the mean of its divisors is an integer number (202120584247).

Almost surely, 2^404241168493 is an apocalyptic number.

It is an amenable number.

404241168493 is a deficient number, since it is larger than the sum of its proper divisors (1).

404241168493 is an equidigital number, since it uses as much as digits as its factorization.

404241168493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 404241168493 in words is "four hundred four billion, two hundred forty-one million, one hundred sixty-eight thousand, four hundred ninety-three".