771933344089 has 2 divisors, whose sum is σ = 771933344090. Its totient is φ = 771933344088.

The previous prime is 771933344053. The next prime is 771933344167. The reversal of 771933344089 is 980443339177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396752593689 + 375180750400 = 629883^2 + 612520^2 .

It is an emirp because it is prime and its reverse (980443339177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 771933344089 - 2²¹ = 771931246937 is a prime.

It is not a weakly prime, because it can be changed into another prime (771933344009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385966672044 + 385966672045.

It is an arithmetic number, because the mean of its divisors is an integer number (385966672045).

Almost surely, 2^771933344089 is an apocalyptic number.

It is an amenable number.

771933344089 is a deficient number, since it is larger than the sum of its proper divisors (1).

771933344089 is an equidigital number, since it uses as much as digits as its factorization.

771933344089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13716864, while the sum is 58.

The spelling of 771933344089 in words is "seven hundred seventy-one billion, nine hundred thirty-three million, three hundred forty-four thousand, eighty-nine".