11772550441 has 4 divisors (see below), whose sum is σ = 11773756800. Its totient is φ = 11771344084.

The previous prime is 11772550417. The next prime is 11772550451. The reversal of 11772550441 is 14405527711.

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.

It is a cyclic number.

It is not a de Polignac number, because 11772550441 - 2⁷ = 11772550313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11772550441.

It is not an unprimeable number, because it can be changed into a prime (11772550451) 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, 588421 + ... + 608098.

It is an arithmetic number, because the mean of its divisors is an integer number (2943439200).

Almost surely, 2^11772550441 is an apocalyptic number.

It is an amenable number.

11772550441 is a deficient number, since it is larger than the sum of its proper divisors (1206359).

11772550441 is an equidigital number, since it uses as much as digits as its factorization.

11772550441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206358.

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 11772550441 in words is "eleven billion, seven hundred seventy-two million, five hundred fifty thousand, four hundred forty-one".