452461451456421 has 80 divisors (see below), whose sum is σ = 742999455272448. Its totient is φ = 272116159754400.

The previous prime is 452461451456387. The next prime is 452461451456459. The reversal of 452461451456421 is 124654154164254.

452461451456421 is a `hidden beast` number, since 4 + 5 + 2 + 4 + 6 + 1 + 4 + 51 + 4 + 564 + 21 = 666.

It is not a de Polignac number, because 452461451456421 - 2³⁴ = 452444271587237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452461451456321) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4650933046 + ... + 4651030328.

Almost surely, 2^{452461451456421} is an apocalyptic number.

It is an amenable number.

452461451456421 is a deficient number, since it is larger than the sum of its proper divisors (290538003816027).

452461451456421 is a wasteful number, since it uses less digits than its factorization.

452461451456421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137284 (or 137275 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 54.

The spelling of 452461451456421 in words is "four hundred fifty-two trillion, four hundred sixty-one billion, four hundred fifty-one million, four hundred fifty-six thousand, four hundred twenty-one".