11543540773 has 16 divisors (see below), whose sum is σ = 11969496576. Its totient is φ = 11121073920.

The previous prime is 11543540717. The next prime is 11543540777. The reversal of 11543540773 is 37704534511.

It is not a de Polignac number, because 11543540773 - 2²¹ = 11541443621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543540777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9675465 + ... + 9676657.

It is an arithmetic number, because the mean of its divisors is an integer number (748093536).

Almost surely, 2^11543540773 is an apocalyptic number.

It is an amenable number.

11543540773 is a deficient number, since it is larger than the sum of its proper divisors (425955803).

11543540773 is a wasteful number, since it uses less digits than its factorization.

11543540773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 11543540773 in words is "eleven billion, five hundred forty-three million, five hundred forty thousand, seven hundred seventy-three".