404041453543421 has 16 divisors (see below), whose sum is σ = 405756688128000. Its totient is φ = 402329123763840.

The previous prime is 404041453543361. The next prime is 404041453543447. The reversal of 404041453543421 is 124345354140404.

It is a cyclic number.

It is not a de Polignac number, because 404041453543421 - 2¹⁴ = 404041453527037 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 (404041453543471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1265543216 + ... + 1265862438.

It is an arithmetic number, because the mean of its divisors is an integer number (25359793008000).

Almost surely, 2^{404041453543421} is an apocalyptic number.

It is an amenable number.

404041453543421 is a deficient number, since it is larger than the sum of its proper divisors (1715234584579).

404041453543421 is a wasteful number, since it uses less digits than its factorization.

404041453543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323756.

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 404041453543421 in words is "four hundred four trillion, forty-one billion, four hundred fifty-three million, five hundred forty-three thousand, four hundred twenty-one".