13844642573 has 8 divisors (see below), whose sum is σ = 14222832888. Its totient is φ = 13466663424.

The previous prime is 13844642549. The next prime is 13844642579. The reversal of 13844642573 is 37524644831.

It can be written as a sum of positive squares in 4 ways, for example, as 537405124 + 13307237449 = 23182^2 + 115357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13844642573 - 2¹⁰ = 13844641549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13844642579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84965 + ... + 186837.

It is an arithmetic number, because the mean of its divisors is an integer number (1777854111).

Almost surely, 2^13844642573 is an apocalyptic number.

It is an amenable number.

13844642573 is a deficient number, since it is larger than the sum of its proper divisors (378190315).

13844642573 is a wasteful number, since it uses less digits than its factorization.

13844642573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105583.

The product of its digits is 1935360, while the sum is 47.

The spelling of 13844642573 in words is "thirteen billion, eight hundred forty-four million, six hundred forty-two thousand, five hundred seventy-three".