13953195691 has 16 divisors (see below), whose sum is σ = 14679812160. Its totient is φ = 13244152320.

The previous prime is 13953195643. The next prime is 13953195703. The reversal of 13953195691 is 19659135931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13953195691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13953195491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647791 + ... + 668983.

It is an arithmetic number, because the mean of its divisors is an integer number (917488260).

Almost surely, 2^13953195691 is an apocalyptic number.

13953195691 is a deficient number, since it is larger than the sum of its proper divisors (726616469).

13953195691 is a wasteful number, since it uses less digits than its factorization.

13953195691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21606.

The product of its digits is 984150, while the sum is 52.

The spelling of 13953195691 in words is "thirteen billion, nine hundred fifty-three million, one hundred ninety-five thousand, six hundred ninety-one".