65001449489 has 2 divisors, whose sum is σ = 65001449490. Its totient is φ = 65001449488.

The previous prime is 65001449477. The next prime is 65001449551. The reversal of 65001449489 is 98494410056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54654491089 + 10346958400 = 233783^2 + 101720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65001449489 is a prime.

It is a super-2 number, since 2×65001449489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65001449189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32500724744 + 32500724745.

It is an arithmetic number, because the mean of its divisors is an integer number (32500724745).

Almost surely, 2^65001449489 is an apocalyptic number.

It is an amenable number.

65001449489 is a deficient number, since it is larger than the sum of its proper divisors (1).

65001449489 is an equidigital number, since it uses as much as digits as its factorization.

65001449489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 65001449489 in words is "sixty-five billion, one million, four hundred forty-nine thousand, four hundred eighty-nine".