13642644246544 has 20 divisors (see below), whose sum is σ = 26880633792720. Its totient is φ = 6705706493600.

The previous prime is 13642644246449. The next prime is 13642644246559. The reversal of 13642644246544 is 44564244624631.

It is a super-3 number, since 3×13642644246544³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7225975882 + ... + 7225977769.

It is an arithmetic number, because the mean of its divisors is an integer number (1344031689636).

Almost surely, 2^{13642644246544} is an apocalyptic number.

It is an amenable number.

13642644246544 is a deficient number, since it is larger than the sum of its proper divisors (13237989546176).

13642644246544 is a wasteful number, since it uses less digits than its factorization.

13642644246544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451953718 (or 14451953712 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 55.

The spelling of 13642644246544 in words is "thirteen trillion, six hundred forty-two billion, six hundred forty-four million, two hundred forty-six thousand, five hundred forty-four".