2628619597 has 2 divisors, whose sum is σ = 2628619598. Its totient is φ = 2628619596.

The previous prime is 2628619589. The next prime is 2628619691. The reversal of 2628619597 is 7959168262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1728979561 + 899640036 = 41581^2 + 29994^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628619597 - 2³ = 2628619589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628619547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314309798 + 1314309799.

It is an arithmetic number, because the mean of its divisors is an integer number (1314309799).

Almost surely, 2^2628619597 is an apocalyptic number.

It is an amenable number.

2628619597 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628619597 is an equidigital number, since it uses as much as digits as its factorization.

2628619597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The square root of 2628619597 is about 51270.0653110565. The cubic root of 2628619597 is about 1380.0958410297.

The spelling of 2628619597 in words is "two billion, six hundred twenty-eight million, six hundred nineteen thousand, five hundred ninety-seven".