404242122242279 has 2 divisors, whose sum is σ = 404242122242280. Its totient is φ = 404242122242278.

The previous prime is 404242122242209. The next prime is 404242122242317. The reversal of 404242122242279 is 972242221242404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404242122242279 - 2⁴⁰ = 403142610614503 is a prime.

It is a super-2 number, since 2×404242122242279² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404242122242209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202121061121139 + 202121061121140.

It is an arithmetic number, because the mean of its divisors is an integer number (202121061121140).

Almost surely, 2^{404242122242279} is an apocalyptic number.

404242122242279 is a deficient number, since it is larger than the sum of its proper divisors (1).

404242122242279 is an equidigital number, since it uses as much as digits as its factorization.

404242122242279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2064384, while the sum is 47.

The spelling of 404242122242279 in words is "four hundred four trillion, two hundred forty-two billion, one hundred twenty-two million, two hundred forty-two thousand, two hundred seventy-nine".