451322544545 has 16 divisors (see below), whose sum is σ = 548167726800. Its totient is φ = 356686848000.

The previous prime is 451322544523. The next prime is 451322544583. The reversal of 451322544545 is 545445223154.

It can be written as a sum of positive squares in 8 ways, for example, as 23136843664 + 428185700881 = 152108^2 + 654359^2 .

It is not a de Polignac number, because 451322544545 - 2²⁰ = 451321495969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451322544496 and 451322544505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768476 + ... + 1221965.

It is an arithmetic number, because the mean of its divisors is an integer number (34260482925).

Almost surely, 2^451322544545 is an apocalyptic number.

It is an amenable number.

451322544545 is a deficient number, since it is larger than the sum of its proper divisors (96845182255).

451322544545 is a wasteful number, since it uses less digits than its factorization.

451322544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990996.

The product of its digits is 1920000, while the sum is 44.

Adding to 451322544545 its reverse (545445223154), we get a palindrome (996767767699).

The spelling of 451322544545 in words is "four hundred fifty-one billion, three hundred twenty-two million, five hundred forty-four thousand, five hundred forty-five".