13890494336 has 32 divisors (see below), whose sum is σ = 28316026200. Its totient is φ = 6783727104.

The previous prime is 13890494329. The next prime is 13890494341. The reversal of 13890494336 is 63349409831.

13890494336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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, 1256351 + ... + 1267358.

Almost surely, 2^13890494336 is an apocalyptic number.

13890494336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13890494336 is an abundant number, since it is smaller than the sum of its proper divisors (14425531864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13890494336 is an equidigital number, since it uses as much as digits as its factorization.

13890494336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523766 (or 2523754 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 13890494336 in words is "thirteen billion, eight hundred ninety million, four hundred ninety-four thousand, three hundred thirty-six".