13403637938 has 8 divisors (see below), whose sum is σ = 20106353520. Its totient is φ = 6701520100.

The previous prime is 13403637889. The next prime is 13403637953. The reversal of 13403637938 is 83973630431.

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 = 13403637892 and 13403637901.

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, 88388 + ... + 186063.

It is an arithmetic number, because the mean of its divisors is an integer number (2513294190).

Almost surely, 2^13403637938 is an apocalyptic number.

13403637938 is a deficient number, since it is larger than the sum of its proper divisors (6702715582).

13403637938 is a wasteful number, since it uses less digits than its factorization.

13403637938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298872.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 13403637938 in words is "thirteen billion, four hundred three million, six hundred thirty-seven thousand, nine hundred thirty-eight".