2597646853 has 2 divisors, whose sum is σ = 2597646854. Its totient is φ = 2597646852.

The previous prime is 2597646851. The next prime is 2597646893. The reversal of 2597646853 is 3586467952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2478247524 + 119399329 = 49782^2 + 10927^2 .

It is a cyclic number.

It is not a de Polignac number, because 2597646853 - 2¹ = 2597646851 is a prime.

Together with 2597646851, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2597646794 and 2597646803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2597646851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1298823426 + 1298823427.

It is an arithmetic number, because the mean of its divisors is an integer number (1298823427).

Almost surely, 2^2597646853 is an apocalyptic number.

It is an amenable number.

2597646853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2597646853 is an equidigital number, since it uses as much as digits as its factorization.

2597646853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 55.

The square root of 2597646853 is about 50967.1154078784. The cubic root of 2597646853 is about 1374.6539035041.

The spelling of 2597646853 in words is "two billion, five hundred ninety-seven million, six hundred forty-six thousand, eight hundred fifty-three".