11528261218 has 4 divisors (see below), whose sum is σ = 17292391830. Its totient is φ = 5764130608.

The previous prime is 11528261167. The next prime is 11528261309. The reversal of 11528261218 is 81216282511.

11528261218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 7762843449 + 3765417769 = 88107^2 + 61363^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2882065303 + ... + 2882065306.

Almost surely, 2^11528261218 is an apocalyptic number.

11528261218 is a deficient number, since it is larger than the sum of its proper divisors (5764130612).

11528261218 is an equidigital number, since it uses as much as digits as its factorization.

11528261218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764130611.

The product of its digits is 15360, while the sum is 37.

The spelling of 11528261218 in words is "eleven billion, five hundred twenty-eight million, two hundred sixty-one thousand, two hundred eighteen".