445673737744 has 135 divisors (see below), whose sum is σ = 912837829197. Its totient is φ = 210786905472.

The previous prime is 445673737741. The next prime is 445673737753. The reversal of 445673737744 is 447737376544.

The square root of 445673737744 is 667588.

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

It can be written as a sum of positive squares in only one way, i.e., 321284912400 + 124388825344 = 566820^2 + 352688^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445673737741) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 6651846799 + ... + 6651846865.

Almost surely, 2^445673737744 is an apocalyptic number.

445673737744 is the 667588-th square number.

It is an amenable number.

445673737744 is an abundant number, since it is smaller than the sum of its proper divisors (467164091453).

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

445673737744 is an frugal number, since it uses more digits than its factorization.

445673737744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 169 counting only the distinct ones).

The product of its digits is 165957120, while the sum is 61.

The spelling of 445673737744 in words is "four hundred forty-five billion, six hundred seventy-three million, seven hundred thirty-seven thousand, seven hundred forty-four".