13686219393 has 32 divisors (see below), whose sum is σ = 24089425920. Its totient is φ = 6691503360.

The previous prime is 13686219383. The next prime is 13686219397. The reversal of 13686219393 is 39391268631.

It is a happy number.

It is not a de Polignac number, because 13686219393 - 2¹⁸ = 13685957249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (13686219397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1738653 + ... + 1746506.

It is an arithmetic number, because the mean of its divisors is an integer number (752794560).

Almost surely, 2^13686219393 is an apocalyptic number.

It is an amenable number.

13686219393 is a deficient number, since it is larger than the sum of its proper divisors (10403206527).

13686219393 is a wasteful number, since it uses less digits than its factorization.

13686219393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485197.

The product of its digits is 1259712, while the sum is 51.

The spelling of 13686219393 in words is "thirteen billion, six hundred eighty-six million, two hundred nineteen thousand, three hundred ninety-three".