404022142897823 has 4 divisors (see below), whose sum is σ = 404032092017280. Its totient is φ = 404012193778368.

The previous prime is 404022142897819. The next prime is 404022142897873. The reversal of 404022142897823 is 328798241220404.

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

It is a cyclic number.

It is not a de Polignac number, because 404022142897823 - 2² = 404022142897819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404022142897873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4974498815 + ... + 4974580032.

It is an arithmetic number, because the mean of its divisors is an integer number (101008023004320).

Almost surely, 2^{404022142897823} is an apocalyptic number.

404022142897823 is a deficient number, since it is larger than the sum of its proper divisors (9949119457).

404022142897823 is an equidigital number, since it uses as much as digits as its factorization.

404022142897823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9949119456.

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 404022142897823 in words is "four hundred four trillion, twenty-two billion, one hundred forty-two million, eight hundred ninety-seven thousand, eight hundred twenty-three".