2209773798539 has 2 divisors, whose sum is σ = 2209773798540. Its totient is φ = 2209773798538.

The previous prime is 2209773798487. The next prime is 2209773798541. The reversal of 2209773798539 is 9358973779022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2209773798539 - 2¹⁶ = 2209773733003 is a prime.

Together with 2209773798541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2209773791539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104886899269 + 1104886899270.

It is an arithmetic number, because the mean of its divisors is an integer number (1104886899270).

Almost surely, 2^{2209773798539} is an apocalyptic number.

2209773798539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209773798539 is an equidigital number, since it uses as much as digits as its factorization.

2209773798539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360067680, while the sum is 71.

The spelling of 2209773798539 in words is "two trillion, two hundred nine billion, seven hundred seventy-three million, seven hundred ninety-eight thousand, five hundred thirty-nine".