13824660644 has 72 divisors (see below), whose sum is σ = 26772070080. Its totient is φ = 6237504000.

The previous prime is 13824660643. The next prime is 13824660671. The reversal of 13824660644 is 44606642831.

It is a super-2 number, since 2×13824660644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13824660595 and 13824660604.

It is not an unprimeable number, because it can be changed into a prime (13824660643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5060759 + ... + 5063489.

Almost surely, 2^13824660644 is an apocalyptic number.

It is an amenable number.

13824660644 is a deficient number, since it is larger than the sum of its proper divisors (12947409436).

13824660644 is a wasteful number, since it uses less digits than its factorization.

13824660644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2930 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 13824660644 in words is "thirteen billion, eight hundred twenty-four million, six hundred sixty thousand, six hundred forty-four".