65799777782027 has 2 divisors, whose sum is σ = 65799777782028. Its totient is φ = 65799777782026.

The previous prime is 65799777782003. The next prime is 65799777782059. The reversal of 65799777782027 is 72028777799756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65799777782027 - 2²⁶ = 65799710673163 is a prime.

It is a super-2 number, since 2×65799777782027² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65799777782527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32899888891013 + 32899888891014.

It is an arithmetic number, because the mean of its divisors is an integer number (32899888891014).

Almost surely, 2^{65799777782027} is an apocalyptic number.

65799777782027 is a deficient number, since it is larger than the sum of its proper divisors (1).

65799777782027 is an equidigital number, since it uses as much as digits as its factorization.

65799777782027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9148386240, while the sum is 83.

The spelling of 65799777782027 in words is "sixty-five trillion, seven hundred ninety-nine billion, seven hundred seventy-seven million, seven hundred eighty-two thousand, twenty-seven".