13749686495999 has 16 divisors (see below), whose sum is σ = 13849514577600. Its totient is φ = 13650178738176.

The previous prime is 13749686495969. The next prime is 13749686496079. The reversal of 13749686495999 is 99959468694731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13749686495999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749686495969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213296657 + ... + 213361109.

It is an arithmetic number, because the mean of its divisors is an integer number (865594661100).

Almost surely, 2^{13749686495999} is an apocalyptic number.

13749686495999 is a deficient number, since it is larger than the sum of its proper divisors (99828081601).

13749686495999 is a wasteful number, since it uses less digits than its factorization.

13749686495999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66914.

The product of its digits is 28570268160, while the sum is 89.

The spelling of 13749686495999 in words is "thirteen trillion, seven hundred forty-nine billion, six hundred eighty-six million, four hundred ninety-five thousand, nine hundred ninety-nine".