11481850433 has 4 divisors (see below), whose sum is σ = 11877776340. Its totient is φ = 11085924528.

The previous prime is 11481850421. The next prime is 11481850469. The reversal of 11481850433 is 33405818411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1938905089 + 9542945344 = 44033^2 + 97688^2 .

It is a cyclic number.

It is not a de Polignac number, because 11481850433 - 2²² = 11477656129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11481853433) 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, 197962910 + ... + 197962967.

It is an arithmetic number, because the mean of its divisors is an integer number (2969444085).

Almost surely, 2^11481850433 is an apocalyptic number.

It is an amenable number.

11481850433 is a deficient number, since it is larger than the sum of its proper divisors (395925907).

11481850433 is an equidigital number, since it uses as much as digits as its factorization.

11481850433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395925906.

The product of its (nonzero) digits is 46080, while the sum is 38.

It can be divided in two parts, 1148 and 1850433, that added together give a palindrome (1851581).

The spelling of 11481850433 in words is "eleven billion, four hundred eighty-one million, eight hundred fifty thousand, four hundred thirty-three".