445746645246773 has 16 divisors (see below), whose sum is σ = 508632925696560. Its totient is φ = 386980159881216.

The previous prime is 445746645246757. The next prime is 445746645246811. The reversal of 445746645246773 is 377642546647544.

It can be written as a sum of positive squares in 8 ways, for example, as 4260067104049 + 441486578142724 = 2063993^2 + 21011582^2 .

It is a cyclic number.

It is not a de Polignac number, because 445746645246773 - 2⁴ = 445746645246757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445746645246773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445746645246703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715427840 + ... + 716050617.

It is an arithmetic number, because the mean of its divisors is an integer number (31789557856035).

Almost surely, 2^{445746645246773} is an apocalyptic number.

It is an amenable number.

445746645246773 is a deficient number, since it is larger than the sum of its proper divisors (62886280449787).

445746645246773 is a wasteful number, since it uses less digits than its factorization.

445746645246773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431479896.

The product of its digits is 11379916800, while the sum is 74.

The spelling of 445746645246773 in words is "four hundred forty-five trillion, seven hundred forty-six billion, six hundred forty-five million, two hundred forty-six thousand, seven hundred seventy-three".