451944263824 has 15 divisors (see below), whose sum is σ = 875647221267. Its totient is φ = 225970787376.

The previous prime is 451944263809. The next prime is 451944263887. The reversal of 451944263824 is 428362449154.

The square root of 451944263824 is 672268.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2605039 + ... + 2773105.

Almost surely, 2^451944263824 is an apocalyptic number.

451944263824 is the 672268-th square number.

It is an amenable number.

451944263824 is a deficient number, since it is larger than the sum of its proper divisors (423702957443).

451944263824 is an frugal number, since it uses more digits than its factorization.

451944263824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336142 (or 168069 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 52.

The spelling of 451944263824 in words is "four hundred fifty-one billion, nine hundred forty-four million, two hundred sixty-three thousand, eight hundred twenty-four".