13389454944 has 36 divisors (see below), whose sum is σ = 38076263316. Its totient is φ = 4463151552.

The previous prime is 13389454919. The next prime is 13389454963. The reversal of 13389454944 is 44945498331.

13389454944 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 94 + 549 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23245294 + ... + 23245869.

It is an arithmetic number, because the mean of its divisors is an integer number (1057673981).

Almost surely, 2^13389454944 is an apocalyptic number.

It is an amenable number.

13389454944 is an abundant number, since it is smaller than the sum of its proper divisors (24686808372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13389454944 is a wasteful number, since it uses less digits than its factorization.

13389454944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46491179 (or 46491168 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 13389454944 in words is "thirteen billion, three hundred eighty-nine million, four hundred fifty-four thousand, nine hundred forty-four".