454432364531621 has 16 divisors (see below), whose sum is σ = 527868460589568. Its totient is φ = 383125643366400.

The previous prime is 454432364531603. The next prime is 454432364531623. The reversal of 454432364531621 is 126135463234454.

It is a cyclic number.

It is not a de Polignac number, because 454432364531621 - 2²² = 454432360337317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454432364531623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68418341 + ... + 74765861.

It is an arithmetic number, because the mean of its divisors is an integer number (32991778786848).

Almost surely, 2^{454432364531621} is an apocalyptic number.

It is an amenable number.

454432364531621 is a deficient number, since it is larger than the sum of its proper divisors (73436096057947).

454432364531621 is a wasteful number, since it uses less digits than its factorization.

454432364531621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515252.

The product of its digits is 24883200, while the sum is 53.

The spelling of 454432364531621 in words is "four hundred fifty-four trillion, four hundred thirty-two billion, three hundred sixty-four million, five hundred thirty-one thousand, six hundred twenty-one".