11387828866 has 32 divisors (see below), whose sum is σ = 18681062400. Its totient is φ = 5185756800.

The previous prime is 11387828833. The next prime is 11387828897. The reversal of 11387828866 is 66882878311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 11387828866.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234591 + ... + 278941.

It is an arithmetic number, because the mean of its divisors is an integer number (583783200).

Almost surely, 2^11387828866 is an apocalyptic number.

11387828866 is a deficient number, since it is larger than the sum of its proper divisors (7293233534).

11387828866 is a wasteful number, since it uses less digits than its factorization.

11387828866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44634.

The product of its digits is 6193152, while the sum is 58.

The spelling of 11387828866 in words is "eleven billion, three hundred eighty-seven million, eight hundred twenty-eight thousand, eight hundred sixty-six".