13491027936 has 144 divisors (see below), whose sum is σ = 40096667520. Its totient is φ = 4294667520.

The previous prime is 13491027917. The next prime is 13491027947. The reversal of 13491027936 is 63972019431.

13491027936 is a `hidden beast` number, since 1 + 349 + 1 + 0 + 279 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13491027891 and 13491027900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5688831 + ... + 5691201.

It is an arithmetic number, because the mean of its divisors is an integer number (278449080).

Almost surely, 2^13491027936 is an apocalyptic number.

13491027936 is a gapful number since it is divisible by the number (16) 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 13491027936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20048333760).

13491027936 is an abundant number, since it is smaller than the sum of its proper divisors (26605639584).

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

13491027936 is a wasteful number, since it uses less digits than its factorization.

13491027936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269 (or 3258 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 13491027936 in words is "thirteen billion, four hundred ninety-one million, twenty-seven thousand, nine hundred thirty-six".