2628881069 has 2 divisors, whose sum is σ = 2628881070. Its totient is φ = 2628881068.

The previous prime is 2628881027. The next prime is 2628881093. The reversal of 2628881069 is 9601888262.

2628881069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1965148900 + 663732169 = 44330^2 + 25763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2628881069 is a prime.

It is a super-2 number, since 2×2628881069² = 13822031349893165522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628881569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314440534 + 1314440535.

It is an arithmetic number, because the mean of its divisors is an integer number (1314440535).

Almost surely, 2^2628881069 is an apocalyptic number.

It is an amenable number.

2628881069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628881069 is an equidigital number, since it uses as much as digits as its factorization.

2628881069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 2628881069 is about 51272.6151956383. The cubic root of 2628881069 is about 1380.1415994519.

The spelling of 2628881069 in words is "two billion, six hundred twenty-eight million, eight hundred eighty-one thousand, sixty-nine".