13694407909 has 32 divisors (see below), whose sum is σ = 18174562560. Its totient is φ = 10014451200.

The previous prime is 13694407873. The next prime is 13694407913. The reversal of 13694407909 is 90970449631.

It is not a de Polignac number, because 13694407909 - 2¹¹ = 13694405861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13694407009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25702 + ... + 167479.

It is an arithmetic number, because the mean of its divisors is an integer number (567955080).

Almost surely, 2^13694407909 is an apocalyptic number.

13694407909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13694407909 is a deficient number, since it is larger than the sum of its proper divisors (4480154651).

13694407909 is a wasteful number, since it uses less digits than its factorization.

13694407909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193261.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 13694407909 in words is "thirteen billion, six hundred ninety-four million, four hundred seven thousand, nine hundred nine".