13561743732 has 12 divisors (see below), whose sum is σ = 31644068736. Its totient is φ = 4520581240.

The previous prime is 13561743709. The next prime is 13561743739. The reversal of 13561743732 is 23734716531.

It is a happy number.

13561743732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561743739) 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 3 ways as a sum of consecutive naturals, for example, 565072644 + ... + 565072667.

It is an arithmetic number, because the mean of its divisors is an integer number (2637005728).

Almost surely, 2^13561743732 is an apocalyptic number.

13561743732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13561743732 is an abundant number, since it is smaller than the sum of its proper divisors (18082325004).

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

13561743732 is a wasteful number, since it uses less digits than its factorization.

13561743732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130145318 (or 1130145316 counting only the distinct ones).

The product of its digits is 317520, while the sum is 42.

The spelling of 13561743732 in words is "thirteen billion, five hundred sixty-one million, seven hundred forty-three thousand, seven hundred thirty-two".