2597728213 has 2 divisors, whose sum is σ = 2597728214. Its totient is φ = 2597728212.

The previous prime is 2597728193. The next prime is 2597728267. The reversal of 2597728213 is 3128277952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1504896849 + 1092831364 = 38793^2 + 33058^2 .

It is a cyclic number.

It is not a de Polignac number, because 2597728213 - 2⁹ = 2597727701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2597728313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1298864106 + 1298864107.

It is an arithmetic number, because the mean of its divisors is an integer number (1298864107).

Almost surely, 2^2597728213 is an apocalyptic number.

It is an amenable number.

2597728213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2597728213 is an equidigital number, since it uses as much as digits as its factorization.

2597728213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 2597728213 is about 50967.9135633390. The cubic root of 2597728213 is about 1374.6682550410.

The spelling of 2597728213 in words is "two billion, five hundred ninety-seven million, seven hundred twenty-eight thousand, two hundred thirteen".