65287984538443 has 2 divisors, whose sum is σ = 65287984538444. Its totient is φ = 65287984538442.

The previous prime is 65287984538429. The next prime is 65287984538479. The reversal of 65287984538443 is 34483548978256.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65287984538443 - 2⁵ = 65287984538411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65287984538443.

It is not a weakly prime, because it can be changed into another prime (65287984538143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32643992269221 + 32643992269222.

It is an arithmetic number, because the mean of its divisors is an integer number (32643992269222).

Almost surely, 2^{65287984538443} is an apocalyptic number.

65287984538443 is a deficient number, since it is larger than the sum of its proper divisors (1).

65287984538443 is an equidigital number, since it uses as much as digits as its factorization.

65287984538443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5573836800, while the sum is 76.

The spelling of 65287984538443 in words is "sixty-five trillion, two hundred eighty-seven billion, nine hundred eighty-four million, five hundred thirty-eight thousand, four hundred forty-three".