65068434449 has 2 divisors, whose sum is σ = 65068434450. Its totient is φ = 65068434448.

The previous prime is 65068434443. The next prime is 65068434499. The reversal of 65068434449 is 94443486056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37952884225 + 27115550224 = 194815^2 + 164668^2 .

It is a cyclic number.

It is not a de Polignac number, because 65068434449 - 2¹⁶ = 65068368913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65068434449.

It is not a weakly prime, because it can be changed into another prime (65068434443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32534217224 + 32534217225.

It is an arithmetic number, because the mean of its divisors is an integer number (32534217225).

Almost surely, 2^65068434449 is an apocalyptic number.

It is an amenable number.

65068434449 is a deficient number, since it is larger than the sum of its proper divisors (1).

65068434449 is an equidigital number, since it uses as much as digits as its factorization.

65068434449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 65068434449 in words is "sixty-five billion, sixty-eight million, four hundred thirty-four thousand, four hundred forty-nine".