13453693819 has 4 divisors (see below), whose sum is σ = 13559628544. Its totient is φ = 13347759096.

The previous prime is 13453693817. The next prime is 13453693829. The reversal of 13453693819 is 91839635431.

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 13453693819 - 2¹ = 13453693817 is a prime.

It is a super-2 number, since 2×13453693819² (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 (13453693817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52967172 + ... + 52967425.

It is an arithmetic number, because the mean of its divisors is an integer number (3389907136).

Almost surely, 2^13453693819 is an apocalyptic number.

13453693819 is a deficient number, since it is larger than the sum of its proper divisors (105934725).

13453693819 is a wasteful number, since it uses less digits than its factorization.

13453693819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105934724.

The product of its digits is 2099520, while the sum is 52.

The spelling of 13453693819 in words is "thirteen billion, four hundred fifty-three million, six hundred ninety-three thousand, eight hundred nineteen".