13406694781736 has 64 divisors (see below), whose sum is σ = 26646374537280. Its totient is φ = 6301892275200.

The previous prime is 13406694781729. The next prime is 13406694781741. The reversal of 13406694781736 is 63718749660431.

13406694781736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451647551 + ... + 451677233.

It is an arithmetic number, because the mean of its divisors is an integer number (416349602145).

Almost surely, 2^{13406694781736} is an apocalyptic number.

It is an amenable number.

13406694781736 is a deficient number, since it is larger than the sum of its proper divisors (13239679755544).

13406694781736 is a wasteful number, since it uses less digits than its factorization.

13406694781736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33354 (or 33350 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 65.

The spelling of 13406694781736 in words is "thirteen trillion, four hundred six billion, six hundred ninety-four million, seven hundred eighty-one thousand, seven hundred thirty-six".