11538552628 has 12 divisors (see below), whose sum is σ = 20309187780. Its totient is φ = 5735927552.

The previous prime is 11538552607. The next prime is 11538552631. The reversal of 11538552628 is 82625583511.

11538552628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10952041104 + 586511524 = 104652^2 + 24218^2 .

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 8336413 + ... + 8337796.

It is an arithmetic number, because the mean of its divisors is an integer number (1692432315).

Almost surely, 2^11538552628 is an apocalyptic number.

It is an amenable number.

11538552628 is a deficient number, since it is larger than the sum of its proper divisors (8770635152).

11538552628 is a wasteful number, since it uses less digits than its factorization.

11538552628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16674386 (or 16674384 counting only the distinct ones).

The product of its digits is 576000, while the sum is 46.

The spelling of 11538552628 in words is "eleven billion, five hundred thirty-eight million, five hundred fifty-two thousand, six hundred twenty-eight".