13636444073 has 12 divisors (see below), whose sum is σ = 16795909332. Its totient is φ = 11000828160.

The previous prime is 13636444027. The next prime is 13636444093. The reversal of 13636444073 is 37044463631.

It can be written as a sum of positive squares in 2 ways, for example, as 5777976169 + 7858467904 = 76013^2 + 88648^2 .

It is not a de Polignac number, because 13636444073 - 2¹⁴ = 13636427689 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 13636444073.

It is not an unprimeable number, because it can be changed into a prime (13636444093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8184308 + ... + 8185973.

It is an arithmetic number, because the mean of its divisors is an integer number (1399659111).

Almost surely, 2^13636444073 is an apocalyptic number.

It is an amenable number.

13636444073 is a deficient number, since it is larger than the sum of its proper divisors (3159465259).

13636444073 is a wasteful number, since it uses less digits than its factorization.

13636444073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16370312 (or 16370305 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 13636444073 in words is "thirteen billion, six hundred thirty-six million, four hundred forty-four thousand, seventy-three".