454821722421 has 32 divisors (see below), whose sum is σ = 667908633600. Its totient is φ = 273005086080.

The previous prime is 454821722393. The next prime is 454821722441. The reversal of 454821722421 is 124227128454.

It is not a de Polignac number, because 454821722421 - 2⁶ = 454821722357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454821722441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16507785 + ... + 16535313.

It is an arithmetic number, because the mean of its divisors is an integer number (20872144800).

Almost surely, 2^454821722421 is an apocalyptic number.

It is an amenable number.

454821722421 is a deficient number, since it is larger than the sum of its proper divisors (213086911179).

454821722421 is a wasteful number, since it uses less digits than its factorization.

454821722421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32329.

The product of its digits is 286720, while the sum is 42.

The spelling of 454821722421 in words is "four hundred fifty-four billion, eight hundred twenty-one million, seven hundred twenty-two thousand, four hundred twenty-one".