766766948741 has 2 divisors, whose sum is σ = 766766948742. Its totient is φ = 766766948740.

The previous prime is 766766948671. The next prime is 766766948749. The reversal of 766766948741 is 147849667667.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428659587841 + 338107360900 = 654721^2 + 581470^2 .

It is a cyclic number.

It is not a de Polignac number, because 766766948741 - 2¹⁴ = 766766932357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766766948749) 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, 383383474370 + 383383474371.

It is an arithmetic number, because the mean of its divisors is an integer number (383383474371).

Almost surely, 2^766766948741 is an apocalyptic number.

It is an amenable number.

766766948741 is a deficient number, since it is larger than the sum of its proper divisors (1).

766766948741 is an equidigital number, since it uses as much as digits as its factorization.

766766948741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512096256, while the sum is 71.

The spelling of 766766948741 in words is "seven hundred sixty-six billion, seven hundred sixty-six million, nine hundred forty-eight thousand, seven hundred forty-one".