22643610828 has 24 divisors (see below), whose sum is σ = 53151474432. Its totient is φ = 7502672784.

The previous prime is 22643610823. The next prime is 22643610851. The reversal of 22643610828 is 82801634622.

It is a super-2 number, since 2×22643610828² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22643610828.

It is not an unprimeable number, because it can be changed into a prime (22643610823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5647600 + ... + 5651607.

It is an arithmetic number, because the mean of its divisors is an integer number (2214644768).

Almost surely, 2^22643610828 is an apocalyptic number.

It is an amenable number.

22643610828 is an abundant number, since it is smaller than the sum of its proper divisors (30507863604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22643610828 is a wasteful number, since it uses less digits than its factorization.

22643610828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11299381 (or 11299379 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 22643610828 in words is "twenty-two billion, six hundred forty-three million, six hundred ten thousand, eight hundred twenty-eight".