11543260534 has 32 divisors (see below), whose sum is σ = 18793091520. Its totient is φ = 5285952000.

The previous prime is 11543260523. The next prime is 11543260537. The reversal of 11543260534 is 43506234511.

It is a self number, because there is not a number n which added to its sum of digits gives 11543260534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543260537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5059474 + ... + 5061754.

It is an arithmetic number, because the mean of its divisors is an integer number (587284110).

Almost surely, 2^11543260534 is an apocalyptic number.

11543260534 is a deficient number, since it is larger than the sum of its proper divisors (7249830986).

11543260534 is a wasteful number, since it uses less digits than its factorization.

11543260534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 11543260534 in words is "eleven billion, five hundred forty-three million, two hundred sixty thousand, five hundred thirty-four".