2628604789 has 2 divisors, whose sum is σ = 2628604790. Its totient is φ = 2628604788.

The previous prime is 2628604729. The next prime is 2628604819. The reversal of 2628604789 is 9874068262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2524258564 + 104346225 = 50242^2 + 10215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628604789 - 2¹⁵ = 2628572021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628604729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314302394 + 1314302395.

It is an arithmetic number, because the mean of its divisors is an integer number (1314302395).

Almost surely, 2^2628604789 is an apocalyptic number.

It is an amenable number.

2628604789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628604789 is an equidigital number, since it uses as much as digits as its factorization.

2628604789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 2628604789 is about 51269.9208991003. The cubic root of 2628604789 is about 1380.0932494924.

The spelling of 2628604789 in words is "two billion, six hundred twenty-eight million, six hundred four thousand, seven hundred eighty-nine".