65838706277 has 2 divisors, whose sum is σ = 65838706278. Its totient is φ = 65838706276.

The previous prime is 65838706267. The next prime is 65838706313. The reversal of 65838706277 is 77260783856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52167016801 + 13671689476 = 228401^2 + 116926^2 .

It is a cyclic number.

It is not a de Polignac number, because 65838706277 - 2⁴ = 65838706261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65838706217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32919353138 + 32919353139.

It is an arithmetic number, because the mean of its divisors is an integer number (32919353139).

Almost surely, 2^65838706277 is an apocalyptic number.

It is an amenable number.

65838706277 is a deficient number, since it is larger than the sum of its proper divisors (1).

65838706277 is an equidigital number, since it uses as much as digits as its factorization.

65838706277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 65838706277 in words is "sixty-five billion, eight hundred thirty-eight million, seven hundred six thousand, two hundred seventy-seven".