22628865829 has 2 divisors, whose sum is σ = 22628865830. Its totient is φ = 22628865828.

The previous prime is 22628865821. The next prime is 22628865863. The reversal of 22628865829 is 92856882622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18609052225 + 4019813604 = 136415^2 + 63402^2 .

It is a cyclic number.

It is not a de Polignac number, because 22628865829 - 2³ = 22628865821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22628865821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11314432914 + 11314432915.

It is an arithmetic number, because the mean of its divisors is an integer number (11314432915).

Almost surely, 2^22628865829 is an apocalyptic number.

It is an amenable number.

22628865829 is a deficient number, since it is larger than the sum of its proper divisors (1).

22628865829 is an equidigital number, since it uses as much as digits as its factorization.

22628865829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 58.

The spelling of 22628865829 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred sixty-five thousand, eight hundred twenty-nine".