11573356873 has 8 divisors (see below), whose sum is σ = 12800470088. Its totient is φ = 10394365824.

The previous prime is 11573356811. The next prime is 11573356889. The reversal of 11573356873 is 37865337511.

11573356873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4739358649 + 6833998224 = 68843^2 + 82668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11573356873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11573356673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12030036 + ... + 12030997.

It is an arithmetic number, because the mean of its divisors is an integer number (1600058761).

Almost surely, 2^11573356873 is an apocalyptic number.

11573356873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11573356873 is a deficient number, since it is larger than the sum of its proper divisors (1227113215).

11573356873 is a wasteful number, since it uses less digits than its factorization.

11573356873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24061083.

The product of its digits is 1587600, while the sum is 49.

The spelling of 11573356873 in words is "eleven billion, five hundred seventy-three million, three hundred fifty-six thousand, eight hundred seventy-three".