13985691935 has 4 divisors (see below), whose sum is σ = 16782830328. Its totient is φ = 11188553544.

The previous prime is 13985691919. The next prime is 13985691977. The reversal of 13985691935 is 53919658931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13985691935 - 2⁴ = 13985691919 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1398569189 + ... + 1398569198.

It is an arithmetic number, because the mean of its divisors is an integer number (4195707582).

Almost surely, 2^13985691935 is an apocalyptic number.

13985691935 is a deficient number, since it is larger than the sum of its proper divisors (2797138393).

13985691935 is an equidigital number, since it uses as much as digits as its factorization.

13985691935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797138392.

The product of its digits is 7873200, while the sum is 59.

The spelling of 13985691935 in words is "thirteen billion, nine hundred eighty-five million, six hundred ninety-one thousand, nine hundred thirty-five".