2645215633 has 2 divisors, whose sum is σ = 2645215634. Its totient is φ = 2645215632.

The previous prime is 2645215627. The next prime is 2645215669. The reversal of 2645215633 is 3365125462.

2645215633 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., 1567209744 + 1078005889 = 39588^2 + 32833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2645215633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2645215592 and 2645215601.

It is not a weakly prime, because it can be changed into another prime (2645215603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322607816 + 1322607817.

It is an arithmetic number, because the mean of its divisors is an integer number (1322607817).

Almost surely, 2^2645215633 is an apocalyptic number.

It is an amenable number.

2645215633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645215633 is an equidigital number, since it uses as much as digits as its factorization.

2645215633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 37.

The square root of 2645215633 is about 51431.6598312751. The cubic root of 2645215633 is about 1382.9942046443.

The spelling of 2645215633 in words is "two billion, six hundred forty-five million, two hundred fifteen thousand, six hundred thirty-three".