13451171819 has 12 divisors (see below), whose sum is σ = 14069019120. Its totient is φ = 12858669600.

The previous prime is 13451171759. The next prime is 13451171821. The reversal of 13451171819 is 91817115431.

13451171819 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 13451171819 - 2²⁰ = 13450123243 is a prime.

It is a super-2 number, since 2×13451171819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13451171849) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5762 + ... + 164120.

It is an arithmetic number, because the mean of its divisors is an integer number (1172418260).

Almost surely, 2^13451171819 is an apocalyptic number.

13451171819 is a deficient number, since it is larger than the sum of its proper divisors (617847301).

13451171819 is a wasteful number, since it uses less digits than its factorization.

13451171819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158518 (or 158489 counting only the distinct ones).

The product of its digits is 30240, while the sum is 41.

The spelling of 13451171819 in words is "thirteen billion, four hundred fifty-one million, one hundred seventy-one thousand, eight hundred nineteen".