13444400052245 has 4 divisors (see below), whose sum is σ = 16133280062700. Its totient is φ = 10755520041792.

The previous prime is 13444400052221. The next prime is 13444400052289. The reversal of 13444400052245 is 54225000444431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7514868238276 + 5929531813969 = 2741326^2 + 2435063^2 .

It is a cyclic number.

It is not a de Polignac number, because 13444400052245 - 2³⁴ = 13427220183061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13444400052199 and 13444400052208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344440005220 + ... + 1344440005229.

It is an arithmetic number, because the mean of its divisors is an integer number (4033320015675).

Almost surely, 2^{13444400052245} is an apocalyptic number.

It is an amenable number.

13444400052245 is a deficient number, since it is larger than the sum of its proper divisors (2688880010455).

13444400052245 is an equidigital number, since it uses as much as digits as its factorization.

13444400052245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688880010454.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 13444400052245 its reverse (54225000444431), we get a palindrome (67669400496676).

The spelling of 13444400052245 in words is "thirteen trillion, four hundred forty-four billion, four hundred million, fifty-two thousand, two hundred forty-five".