13931864090 has 32 divisors (see below), whose sum is σ = 25773914880. Its totient is φ = 5420061504.

The previous prime is 13931864081. The next prime is 13931864113. The reversal of 13931864090 is 9046813931.

13931864090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 78677 + ... + 184536.

It is an arithmetic number, because the mean of its divisors is an integer number (805434840).

Almost surely, 2^13931864090 is an apocalyptic number.

13931864090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13931864090 is a deficient number, since it is larger than the sum of its proper divisors (11842050790).

13931864090 is a wasteful number, since it uses less digits than its factorization.

13931864090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263366.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 13931864090 in words is "thirteen billion, nine hundred thirty-one million, eight hundred sixty-four thousand, ninety".