800276544587489 has 2 divisors, whose sum is σ = 800276544587490. Its totient is φ = 800276544587488.

The previous prime is 800276544587459. The next prime is 800276544587501. The reversal of 800276544587489 is 984785445672008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781393521975889 + 18883022611600 = 27953417^2 + 4345460^2 .

It is a cyclic number.

It is not a de Polignac number, because 800276544587489 - 2¹⁶ = 800276544521953 is a prime.

It is a super-2 number, since 2×800276544587489² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800276544587459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400138272293744 + 400138272293745.

It is an arithmetic number, because the mean of its divisors is an integer number (400138272293745).

Almost surely, 2^{800276544587489} is an apocalyptic number.

It is an amenable number.

800276544587489 is a deficient number, since it is larger than the sum of its proper divisors (1).

800276544587489 is an equidigital number, since it uses as much as digits as its factorization.

800276544587489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4335206400, while the sum is 77.

The spelling of 800276544587489 in words is "eight hundred trillion, two hundred seventy-six billion, five hundred forty-four million, five hundred eighty-seven thousand, four hundred eighty-nine".