13890105886 has 8 divisors (see below), whose sum is σ = 20877942960. Its totient is φ = 6930791568.

The previous prime is 13890105821. The next prime is 13890105899. The reversal of 13890105886 is 68850109831.

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

It is a congruent number.

It is an unprimeable number.

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, 7129471 + ... + 7131418.

It is an arithmetic number, because the mean of its divisors is an integer number (2609742870).

Almost surely, 2^13890105886 is an apocalyptic number.

13890105886 is a deficient number, since it is larger than the sum of its proper divisors (6987837074).

13890105886 is a wasteful number, since it uses less digits than its factorization.

13890105886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14261378.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 13890105886 in words is "thirteen billion, eight hundred ninety million, one hundred five thousand, eight hundred eighty-six".