2228825668889 has 2 divisors, whose sum is σ = 2228825668890. Its totient is φ = 2228825668888.

The previous prime is 2228825668829. The next prime is 2228825668931. The reversal of 2228825668889 is 9888665288222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378529595664 + 850296073225 = 1174108^2 + 922115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228825668889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2228825668829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114412834444 + 1114412834445.

It is an arithmetic number, because the mean of its divisors is an integer number (1114412834445).

Almost surely, 2^{2228825668889} is an apocalyptic number.

It is an amenable number.

2228825668889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228825668889 is an equidigital number, since it uses as much as digits as its factorization.

2228825668889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 849346560, while the sum is 74.

The spelling of 2228825668889 in words is "two trillion, two hundred twenty-eight billion, eight hundred twenty-five million, six hundred sixty-eight thousand, eight hundred eighty-nine".