13889519047 has 8 divisors (see below), whose sum is σ = 13914808992. Its totient is φ = 13864250400.

The previous prime is 13889519009. The next prime is 13889519069. The reversal of 13889519047 is 74091598831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13889519047 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 (13889519647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838097 + ... + 1845637.

It is an arithmetic number, because the mean of its divisors is an integer number (1739351124).

Almost surely, 2^13889519047 is an apocalyptic number.

13889519047 is a deficient number, since it is larger than the sum of its proper divisors (25289945).

13889519047 is an equidigital number, since it uses as much as digits as its factorization.

13889519047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 13889519047 in words is "thirteen billion, eight hundred eighty-nine million, five hundred nineteen thousand, forty-seven".