11822819968 has 16 divisors (see below), whose sum is σ = 23553274410. Its totient is φ = 5911409920.

The previous prime is 11822819951. The next prime is 11822819969. The reversal of 11822819968 is 86991822811.

It can be written as a sum of positive squares in only one way, i.e., 10191306304 + 1631513664 = 100952^2 + 40392^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11822819969) by changing a digit.

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 as a sum of consecutive naturals, namely, 46182763 + ... + 46183018.

Almost surely, 2^11822819968 is an apocalyptic number.

It is an amenable number.

11822819968 is a deficient number, since it is larger than the sum of its proper divisors (11730454442).

11822819968 is an frugal number, since it uses more digits than its factorization.

11822819968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92365795 (or 92365783 counting only the distinct ones).

The product of its digits is 995328, while the sum is 55.

The spelling of 11822819968 in words is "eleven billion, eight hundred twenty-two million, eight hundred nineteen thousand, nine hundred sixty-eight".