13636145594 has 4 divisors (see below), whose sum is σ = 20454218394. Its totient is φ = 6818072796.

The previous prime is 13636145573. The next prime is 13636145599. The reversal of 13636145594 is 49554163631.

13636145594 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49554163631 = 7 ⋅7079166233.

It can be written as a sum of positive squares in only one way, i.e., 12902006569 + 734139025 = 113587^2 + 27095^2 .

It is a super-2 number, since 2×13636145594² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13636145599) 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 as a sum of consecutive naturals, namely, 3409036397 + ... + 3409036400.

Almost surely, 2^13636145594 is an apocalyptic number.

13636145594 is a deficient number, since it is larger than the sum of its proper divisors (6818072800).

13636145594 is an equidigital number, since it uses as much as digits as its factorization.

13636145594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818072799.

The product of its digits is 1166400, while the sum is 47.

The spelling of 13636145594 in words is "thirteen billion, six hundred thirty-six million, one hundred forty-five thousand, five hundred ninety-four".