404423321279 has 2 divisors, whose sum is σ = 404423321280. Its totient is φ = 404423321278.

The previous prime is 404423321257. The next prime is 404423321333. The reversal of 404423321279 is 972123324404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404423321279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404423321209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202211660639 + 202211660640.

It is an arithmetic number, because the mean of its divisors is an integer number (202211660640).

Almost surely, 2^404423321279 is an apocalyptic number.

404423321279 is a deficient number, since it is larger than the sum of its proper divisors (1).

404423321279 is an equidigital number, since it uses as much as digits as its factorization.

404423321279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 404423321279 in words is "four hundred four billion, four hundred twenty-three million, three hundred twenty-one thousand, two hundred seventy-nine".