13903605538 has 8 divisors (see below), whose sum is σ = 20868278940. Its totient is φ = 6947512560.

The previous prime is 13903605511. The next prime is 13903605557. The reversal of 13903605538 is 83550630931.

13903605538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13709365569 + 194239969 = 117087^2 + 13937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13903605494 and 13903605503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141053 + ... + 2147536.

Almost surely, 2^13903605538 is an apocalyptic number.

13903605538 is a deficient number, since it is larger than the sum of its proper divisors (6964673402).

13903605538 is a wasteful number, since it uses less digits than its factorization.

13903605538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290212.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 13903605538 in words is "thirteen billion, nine hundred three million, six hundred five thousand, five hundred thirty-eight".