11822720828 has 12 divisors (see below), whose sum is σ = 21170919000. Its totient is φ = 5773886832.

The previous prime is 11822720827. The next prime is 11822720837. The reversal of 11822720828 is 82802722811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822720827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34368203 + ... + 34368546.

It is an arithmetic number, because the mean of its divisors is an integer number (1764243250).

Almost surely, 2^11822720828 is an apocalyptic number.

It is an amenable number.

11822720828 is a deficient number, since it is larger than the sum of its proper divisors (9348198172).

11822720828 is a wasteful number, since it uses less digits than its factorization.

11822720828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68736796 (or 68736794 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 41.

The spelling of 11822720828 in words is "eleven billion, eight hundred twenty-two million, seven hundred twenty thousand, eight hundred twenty-eight".