13805211390 has 16 divisors (see below), whose sum is σ = 33132507408. Its totient is φ = 3681389696.

The previous prime is 13805211379. The next prime is 13805211397. The reversal of 13805211390 is 9311250831.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805211397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230086827 + ... + 230086886.

It is an arithmetic number, because the mean of its divisors is an integer number (2070781713).

Almost surely, 2^13805211390 is an apocalyptic number.

13805211390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13805211390 is an abundant number, since it is smaller than the sum of its proper divisors (19327296018).

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

13805211390 is a wasteful number, since it uses less digits than its factorization.

13805211390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460173723.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 13805211390 in words is "thirteen billion, eight hundred five million, two hundred eleven thousand, three hundred ninety".