451653524326445 has 12 divisors (see below), whose sum is σ = 630471450284604. Its totient is φ = 309705273823680.

The previous prime is 451653524326423. The next prime is 451653524326447. The reversal of 451653524326445 is 544623425356154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121361465550724 + 330292058775721 = 11016418^2 + 18173939^2 .

It is not a de Polignac number, because 451653524326445 - 2²² = 451653520132141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451653524326447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 921741886136 + ... + 921741886625.

It is an arithmetic number, because the mean of its divisors is an integer number (52539287523717).

Almost surely, 2^{451653524326445} is an apocalyptic number.

It is an amenable number.

451653524326445 is a deficient number, since it is larger than the sum of its proper divisors (178817925958159).

451653524326445 is a wasteful number, since it uses less digits than its factorization.

451653524326445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843483772780 (or 1843483772773 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 59.

The spelling of 451653524326445 in words is "four hundred fifty-one trillion, six hundred fifty-three billion, five hundred twenty-four million, three hundred twenty-six thousand, four hundred forty-five".