13003520638 has 16 divisors (see below), whose sum is σ = 20153222496. Its totient is φ = 6289235680.

The previous prime is 13003520591. The next prime is 13003520659. The reversal of 13003520638 is 83602530031.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 856381 + ... + 871432.

It is an arithmetic number, because the mean of its divisors is an integer number (1259576406).

Almost surely, 2^13003520638 is an apocalyptic number.

13003520638 is a deficient number, since it is larger than the sum of its proper divisors (7149701858).

13003520638 is a wasteful number, since it uses less digits than its factorization.

13003520638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727939.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 13003520638 in words is "thirteen billion, three million, five hundred twenty thousand, six hundred thirty-eight".