451125565321 has 8 divisors (see below), whose sum is σ = 465785465600. Its totient is φ = 436472381520.

The previous prime is 451125565309. The next prime is 451125565343. The reversal of 451125565321 is 123565521154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 451125565321 - 2⁹ = 451125564809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451125565421) 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 7 ways as a sum of consecutive naturals, for example, 1542426 + ... + 1811443.

It is an arithmetic number, because the mean of its divisors is an integer number (58223183200).

Almost surely, 2^451125565321 is an apocalyptic number.

It is an amenable number.

451125565321 is a deficient number, since it is larger than the sum of its proper divisors (14659900279).

451125565321 is a wasteful number, since it uses less digits than its factorization.

451125565321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358239.

The product of its digits is 180000, while the sum is 40.

The spelling of 451125565321 in words is "four hundred fifty-one billion, one hundred twenty-five million, five hundred sixty-five thousand, three hundred twenty-one".