767816546505089 has 2 divisors, whose sum is σ = 767816546505090. Its totient is φ = 767816546505088.

The previous prime is 767816546505079. The next prime is 767816546505109. The reversal of 767816546505089 is 980505645618767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734799858124864 + 33016688380225 = 27107192^2 + 5746015^2 .

It is a cyclic number.

It is not a de Polignac number, because 767816546505089 - 2⁴⁸ = 486341569794433 is a prime.

It is not a weakly prime, because it can be changed into another prime (767816546505079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383908273252544 + 383908273252545.

It is an arithmetic number, because the mean of its divisors is an integer number (383908273252545).

Almost surely, 2^{767816546505089} is an apocalyptic number.

It is an amenable number.

767816546505089 is a deficient number, since it is larger than the sum of its proper divisors (1).

767816546505089 is an equidigital number, since it uses as much as digits as its factorization.

767816546505089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192000, while the sum is 77.

The spelling of 767816546505089 in words is "seven hundred sixty-seven trillion, eight hundred sixteen billion, five hundred forty-six million, five hundred five thousand, eighty-nine".