11528638333 has 4 divisors (see below), whose sum is σ = 11588997888. Its totient is φ = 11468278780.

The previous prime is 11528638273. The next prime is 11528638339. The reversal of 11528638333 is 33383682511.

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: 33383682511 = 23 ⋅1451464457.

It is a cyclic number.

It is not a de Polignac number, because 11528638333 - 2²¹ = 11526541181 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 11528638333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528638339) 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, 30179491 + ... + 30179872.

It is an arithmetic number, because the mean of its divisors is an integer number (2897249472).

Almost surely, 2^11528638333 is an apocalyptic number.

It is an amenable number.

11528638333 is a deficient number, since it is larger than the sum of its proper divisors (60359555).

11528638333 is an equidigital number, since it uses as much as digits as its factorization.

11528638333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60359554.

The product of its digits is 311040, while the sum is 43.

The spelling of 11528638333 in words is "eleven billion, five hundred twenty-eight million, six hundred thirty-eight thousand, three hundred thirty-three".