13892991563 has 4 divisors (see below), whose sum is σ = 15155990808. Its totient is φ = 12629992320.

The previous prime is 13892991557. The next prime is 13892991641. The reversal of 13892991563 is 36519929831.

It is a happy number.

13892991563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13892991563 - 2¹⁰ = 13892990539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13892991499 and 13892991508.

It is not an unprimeable number, because it can be changed into a prime (13892991523) 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 3 ways as a sum of consecutive naturals, for example, 631499606 + ... + 631499627.

It is an arithmetic number, because the mean of its divisors is an integer number (3788997702).

Almost surely, 2^13892991563 is an apocalyptic number.

13892991563 is a deficient number, since it is larger than the sum of its proper divisors (1262999245).

13892991563 is a wasteful number, since it uses less digits than its factorization.

13892991563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262999244.

The product of its digits is 3149280, while the sum is 56.

The spelling of 13892991563 in words is "thirteen billion, eight hundred ninety-two million, nine hundred ninety-one thousand, five hundred sixty-three".