11833545985 has 8 divisors (see below), whose sum is σ = 14216830056. Its totient is φ = 9455786880.

The previous prime is 11833545947. The next prime is 11833546001. The reversal of 11833545985 is 58954533811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3994745616 + 7838800369 = 63204^2 + 88537^2 .

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

It is not a de Polignac number, because 11833545985 - 2¹⁵ = 11833513217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1376526 + ... + 1385095.

It is an arithmetic number, because the mean of its divisors is an integer number (1777103757).

Almost surely, 2^11833545985 is an apocalyptic number.

It is an amenable number.

11833545985 is a deficient number, since it is larger than the sum of its proper divisors (2383284071).

11833545985 is an equidigital number, since it uses as much as digits as its factorization.

11833545985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762483.

The product of its digits is 2592000, while the sum is 52.

The spelling of 11833545985 in words is "eleven billion, eight hundred thirty-three million, five hundred forty-five thousand, nine hundred eighty-five".