451424721568 has 48 divisors (see below), whose sum is σ = 936938772000. Its totient is φ = 213508092672.

The previous prime is 451424721533. The next prime is 451424721593. The reversal of 451424721568 is 865127424154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162663 + ... + 964006.

It is an arithmetic number, because the mean of its divisors is an integer number (19519557750).

Almost surely, 2^451424721568 is an apocalyptic number.

It is an amenable number.

451424721568 is an abundant number, since it is smaller than the sum of its proper divisors (485514050432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451424721568 is a wasteful number, since it uses less digits than its factorization.

451424721568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127357 (or 1127349 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 49.

The spelling of 451424721568 in words is "four hundred fifty-one billion, four hundred twenty-four million, seven hundred twenty-one thousand, five hundred sixty-eight".