2628149009 has 2 divisors, whose sum is σ = 2628149010. Its totient is φ = 2628149008.

The previous prime is 2628149003. The next prime is 2628149053. The reversal of 2628149009 is 9009418262.

2628149009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2436409600 + 191739409 = 49360^2 + 13847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628149009 - 2⁸ = 2628148753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2628149003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314074504 + 1314074505.

It is an arithmetic number, because the mean of its divisors is an integer number (1314074505).

Almost surely, 2^2628149009 is an apocalyptic number.

It is an amenable number.

2628149009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628149009 is an equidigital number, since it uses as much as digits as its factorization.

2628149009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2628149009 is about 51265.4757999962. The cubic root of 2628149009 is about 1380.0134790044.

The spelling of 2628149009 in words is "two billion, six hundred twenty-eight million, one hundred forty-nine thousand, nine".