13885543040 has 32 divisors (see below), whose sum is σ = 33195127860. Its totient is φ = 5554216960.

The previous prime is 13885543031. The next prime is 13885543043. The reversal of 13885543040 is 4034558831.

It can be written as a sum of positive squares in 2 ways, for example, as 13258140736 + 627402304 = 115144^2 + 25048^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13885543043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10847441 + ... + 10848720.

Almost surely, 2^13885543040 is an apocalyptic number.

13885543040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13885543040 is an abundant number, since it is smaller than the sum of its proper divisors (19309584820).

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

13885543040 is an equidigital number, since it uses as much as digits as its factorization.

13885543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21696180 (or 21696168 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 13885543040 in words is "thirteen billion, eight hundred eighty-five million, five hundred forty-three thousand, forty".