454507610221 has 4 divisors (see below), whose sum is σ = 519437268832. Its totient is φ = 389577951612.

The previous prime is 454507610197. The next prime is 454507610251. The reversal of 454507610221 is 122016705454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 454507610221 - 2²³ = 454499221613 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 (454507610251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32464829295 + ... + 32464829308.

It is an arithmetic number, because the mean of its divisors is an integer number (129859317208).

Almost surely, 2^454507610221 is an apocalyptic number.

It is an amenable number.

454507610221 is a deficient number, since it is larger than the sum of its proper divisors (64929658611).

454507610221 is an equidigital number, since it uses as much as digits as its factorization.

454507610221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64929658610.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 454507610221 in words is "four hundred fifty-four billion, five hundred seven million, six hundred ten thousand, two hundred twenty-one".