65708266372769 has 2 divisors, whose sum is σ = 65708266372770. Its totient is φ = 65708266372768.

The previous prime is 65708266372643. The next prime is 65708266372813. The reversal of 65708266372769 is 96727366280756.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34862683318369 + 30845583054400 = 5904463^2 + 5553880^2 .

It is a cyclic number.

It is not a de Polignac number, because 65708266372769 - 2²⁸ = 65707997937313 is a prime.

It is a super-2 number, since 2×65708266372769² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65708266372696 and 65708266372705.

It is not a weakly prime, because it can be changed into another prime (65708266372169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32854133186384 + 32854133186385.

It is an arithmetic number, because the mean of its divisors is an integer number (32854133186385).

Almost surely, 2^{65708266372769} is an apocalyptic number.

It is an amenable number.

65708266372769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65708266372769 is an equidigital number, since it uses as much as digits as its factorization.

65708266372769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920360960, while the sum is 74.

The spelling of 65708266372769 in words is "sixty-five trillion, seven hundred eight billion, two hundred sixty-six million, three hundred seventy-two thousand, seven hundred sixty-nine".