11856004933 has 4 divisors (see below), whose sum is σ = 11856824928. Its totient is φ = 11855184940.

The previous prime is 11856004913. The next prime is 11856004943. The reversal of 11856004933 is 33940065811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33940065811 = 163771 ⋅207241.

It is a cyclic number.

It is not a de Polignac number, because 11856004933 - 2⁹ = 11856004421 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856004903) 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, 387913 + ... + 417358.

It is an arithmetic number, because the mean of its divisors is an integer number (2964206232).

Almost surely, 2^11856004933 is an apocalyptic number.

It is an amenable number.

11856004933 is a deficient number, since it is larger than the sum of its proper divisors (819995).

11856004933 is an equidigital number, since it uses as much as digits as its factorization.

11856004933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819994.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 11856004933 in words is "eleven billion, eight hundred fifty-six million, four thousand, nine hundred thirty-three".