11543049528 has 16 divisors (see below), whose sum is σ = 28857623880. Its totient is φ = 3847683168.

The previous prime is 11543049523. The next prime is 11543049541. The reversal of 11543049528 is 82594034511.

It is a super-2 number, since 2×11543049528² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11543049528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543049523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240480175 + ... + 240480222.

Almost surely, 2^11543049528 is an apocalyptic number.

It is an amenable number.

11543049528 is an abundant number, since it is smaller than the sum of its proper divisors (17314574352).

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

11543049528 is a wasteful number, since it uses less digits than its factorization.

11543049528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480960406 (or 480960402 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 11543049528 in words is "eleven billion, five hundred forty-three million, forty-nine thousand, five hundred twenty-eight".