13805837385 has 16 divisors (see below), whose sum is σ = 22092860160. Its totient is φ = 7361939840.

The previous prime is 13805837363. The next prime is 13805837389. The reversal of 13805837385 is 58373850831.

It is a happy number.

13805837385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13805837385 - 2¹⁰ = 13805836361 is a prime.

It is a super-2 number, since 2×13805837385² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13805837389) 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 15 ways as a sum of consecutive naturals, for example, 28480 + ... + 168590.

It is an arithmetic number, because the mean of its divisors is an integer number (1380803760).

Almost surely, 2^13805837385 is an apocalyptic number.

13805837385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13805837385 is a deficient number, since it is larger than the sum of its proper divisors (8287022775).

13805837385 is a wasteful number, since it uses less digits than its factorization.

13805837385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146688.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 13805837385 in words is "thirteen billion, eight hundred five million, eight hundred thirty-seven thousand, three hundred eighty-five".