11271745524 has 96 divisors (see below), whose sum is σ = 28568897280. Its totient is φ = 3438379008.

The previous prime is 11271745523. The next prime is 11271745553. The reversal of 11271745524 is 42554717211.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11271745523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10543662 + ... + 10544730.

It is an arithmetic number, because the mean of its divisors is an integer number (297592680).

Almost surely, 2^11271745524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11271745524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14284448640).

11271745524 is an abundant number, since it is smaller than the sum of its proper divisors (17297151756).

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

11271745524 is a wasteful number, since it uses less digits than its factorization.

11271745524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1607 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The spelling of 11271745524 in words is "eleven billion, two hundred seventy-one million, seven hundred forty-five thousand, five hundred twenty-four".