13726694505 has 16 divisors (see below), whose sum is σ = 21979393920. Its totient is φ = 7315342848.

The previous prime is 13726694483. The next prime is 13726694521. The reversal of 13726694505 is 50549662731.

13726694505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13726694505 - 2⁵ = 13726694473 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 327112 + ... + 366681.

It is an arithmetic number, because the mean of its divisors is an integer number (1373712120).

Almost surely, 2^13726694505 is an apocalyptic number.

13726694505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13726694505 is a deficient number, since it is larger than the sum of its proper divisors (8252699415).

13726694505 is a wasteful number, since it uses less digits than its factorization.

13726694505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695120.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 13726694505 in words is "thirteen billion, seven hundred twenty-six million, six hundred ninety-four thousand, five hundred five".