13535521244 has 24 divisors (see below), whose sum is σ = 28663457760. Its totient is φ = 5459705856.

The previous prime is 13535521231. The next prime is 13535521247. The reversal of 13535521244 is 44212553531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13535521247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14217509 + ... + 14218460.

It is an arithmetic number, because the mean of its divisors is an integer number (1194310740).

Almost surely, 2^13535521244 is an apocalyptic number.

13535521244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13535521244 is an abundant number, since it is smaller than the sum of its proper divisors (15127936516).

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

13535521244 is a wasteful number, since it uses less digits than its factorization.

13535521244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28435997 (or 28435995 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The spelling of 13535521244 in words is "thirteen billion, five hundred thirty-five million, five hundred twenty-one thousand, two hundred forty-four".