11771233775 has 24 divisors (see below), whose sum is σ = 16916488704. Its totient is φ = 7958008800.

The previous prime is 11771233757. The next prime is 11771233807. The reversal of 11771233775 is 57733217711.

It is not a de Polignac number, because 11771233775 - 2¹⁰ = 11771232751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461267 + ... + 486116.

It is an arithmetic number, because the mean of its divisors is an integer number (704853696).

Almost surely, 2^11771233775 is an apocalyptic number.

11771233775 is a deficient number, since it is larger than the sum of its proper divisors (5145254929).

11771233775 is an equidigital number, since it uses as much as digits as its factorization.

11771233775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947471 (or 947466 counting only the distinct ones).

The product of its digits is 216090, while the sum is 44.

The spelling of 11771233775 in words is "eleven billion, seven hundred seventy-one million, two hundred thirty-three thousand, seven hundred seventy-five".