13687952419 has 2 divisors, whose sum is σ = 13687952420. Its totient is φ = 13687952418.

The previous prime is 13687952417. The next prime is 13687952437. The reversal of 13687952419 is 91425978631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13687952419 - 2¹ = 13687952417 is a prime.

It is a super-2 number, since 2×13687952419² (a number of 21 digits) contains 22 as substring.

Together with 13687952417, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13687952419.

It is not a weakly prime, because it can be changed into another prime (13687952417) 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 as a sum of consecutive naturals, namely, 6843976209 + 6843976210.

It is an arithmetic number, because the mean of its divisors is an integer number (6843976210).

Almost surely, 2^13687952419 is an apocalyptic number.

13687952419 is a deficient number, since it is larger than the sum of its proper divisors (1).

13687952419 is an equidigital number, since it uses as much as digits as its factorization.

13687952419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The spelling of 13687952419 in words is "thirteen billion, six hundred eighty-seven million, nine hundred fifty-two thousand, four hundred nineteen".