13786031840 has 96 divisors (see below), whose sum is σ = 37459848384. Its totient is φ = 4696473600.

The previous prime is 13786031821. The next prime is 13786031843. The reversal of 13786031840 is 4813068731.

13786031840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13786031843) 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, 136640 + ... + 215040.

It is an arithmetic number, because the mean of its divisors is an integer number (390206754).

Almost surely, 2^13786031840 is an apocalyptic number.

13786031840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13786031840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18729924192).

13786031840 is an abundant number, since it is smaller than the sum of its proper divisors (23673816544).

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

13786031840 is a wasteful number, since it uses less digits than its factorization.

13786031840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78580 (or 78572 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 13786031840 in words is "thirteen billion, seven hundred eighty-six million, thirty-one thousand, eight hundred forty".