13440644050 has 48 divisors (see below), whose sum is σ = 26221714560. Its totient is φ = 5119623360.

The previous prime is 13440644027. The next prime is 13440644051. The reversal of 13440644050 is 5044604431.

It is not an unprimeable number, because it can be changed into a prime (13440644051) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9661 + ... + 164239.

It is an arithmetic number, because the mean of its divisors is an integer number (546285720).

Almost surely, 2^13440644050 is an apocalyptic number.

13440644050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13440644050 is a deficient number, since it is larger than the sum of its proper divisors (12781070510).

13440644050 is a wasteful number, since it uses less digits than its factorization.

13440644050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154675 (or 154670 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 13440644050 in words is "thirteen billion, four hundred forty million, six hundred forty-four thousand, fifty".