65740273289 has 2 divisors, whose sum is σ = 65740273290. Its totient is φ = 65740273288.

The previous prime is 65740273243. The next prime is 65740273309. The reversal of 65740273289 is 98237204756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65531904064 + 208369225 = 255992^2 + 14435^2 .

It is a cyclic number.

It is not a de Polignac number, because 65740273289 - 2³² = 61445305993 is a prime.

It is a super-2 number, since 2×65740273289² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65740273289.

It is not a weakly prime, because it can be changed into another prime (65740273789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32870136644 + 32870136645.

It is an arithmetic number, because the mean of its divisors is an integer number (32870136645).

Almost surely, 2^65740273289 is an apocalyptic number.

It is an amenable number.

65740273289 is a deficient number, since it is larger than the sum of its proper divisors (1).

65740273289 is an equidigital number, since it uses as much as digits as its factorization.

65740273289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 65740273289 in words is "sixty-five billion, seven hundred forty million, two hundred seventy-three thousand, two hundred eighty-nine".