11061840388 has 24 divisors (see below), whose sum is σ = 20030333400. Its totient is φ = 5338975488.

The previous prime is 11061840373. The next prime is 11061840397. The reversal of 11061840388 is 88304816011.

It can be written as a sum of positive squares in 4 ways, for example, as 6716130304 + 4345710084 = 81952^2 + 65922^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11061840388.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691456 + ... + 707272.

It is an arithmetic number, because the mean of its divisors is an integer number (834597225).

Almost surely, 2^11061840388 is an apocalyptic number.

It is an amenable number.

11061840388 is a deficient number, since it is larger than the sum of its proper divisors (8968493012).

11061840388 is a wasteful number, since it uses less digits than its factorization.

11061840388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21879 (or 21877 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 11061840388 in words is "eleven billion, sixty-one million, eight hundred forty thousand, three hundred eighty-eight".