13504603388 has 12 divisors (see below), whose sum is σ = 23642237640. Its totient is φ = 6749678352.

The previous prime is 13504603379. The next prime is 13504603423. The reversal of 13504603388 is 88330640531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644231 + ... + 664862.

It is an arithmetic number, because the mean of its divisors is an integer number (1970186470).

Almost surely, 2^13504603388 is an apocalyptic number.

It is an amenable number.

13504603388 is a deficient number, since it is larger than the sum of its proper divisors (10137634252).

13504603388 is a wasteful number, since it uses less digits than its factorization.

13504603388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311676 (or 1311674 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 13504603388 in words is "thirteen billion, five hundred four million, six hundred three thousand, three hundred eighty-eight".