13646444542 has 8 divisors (see below), whose sum is σ = 20549316096. Its totient is φ = 6796672512.

The previous prime is 13646444531. The next prime is 13646444543. The reversal of 13646444542 is 24544464631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13646444543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13274238 + ... + 13275265.

It is an arithmetic number, because the mean of its divisors is an integer number (2568664512).

Almost surely, 2^13646444542 is an apocalyptic number.

13646444542 is a deficient number, since it is larger than the sum of its proper divisors (6902871554).

13646444542 is a wasteful number, since it uses less digits than its factorization.

13646444542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26549762.

The product of its digits is 1105920, while the sum is 43.

The spelling of 13646444542 in words is "thirteen billion, six hundred forty-six million, four hundred forty-four thousand, five hundred forty-two".