77728486760459 has 2 divisors, whose sum is σ = 77728486760460. Its totient is φ = 77728486760458.

The previous prime is 77728486760443. The next prime is 77728486760473. The reversal of 77728486760459 is 95406768482777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77728486760459 - 2⁴ = 77728486760443 is a prime.

It is not a weakly prime, because it can be changed into another prime (77728486769459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38864243380229 + 38864243380230.

It is an arithmetic number, because the mean of its divisors is an integer number (38864243380230).

Almost surely, 2^{77728486760459} is an apocalyptic number.

77728486760459 is a deficient number, since it is larger than the sum of its proper divisors (1).

77728486760459 is an equidigital number, since it uses as much as digits as its factorization.

77728486760459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7965941760, while the sum is 80.

The spelling of 77728486760459 in words is "seventy-seven trillion, seven hundred twenty-eight billion, four hundred eighty-six million, seven hundred sixty thousand, four hundred fifty-nine".