766475064305 has 4 divisors (see below), whose sum is σ = 919770077172. Its totient is φ = 613180051440.

The previous prime is 766475064227. The next prime is 766475064317. The reversal of 766475064305 is 503460574667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503460574667 = 751 ⋅670386917.

It can be written as a sum of positive squares in 2 ways, for example, as 142237596736 + 624237467569 = 377144^2 + 790087^2 .

It is not a de Polignac number, because 766475064305 - 2⁸ = 766475064049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76647506426 + ... + 76647506435.

It is an arithmetic number, because the mean of its divisors is an integer number (229942519293).

Almost surely, 2^766475064305 is an apocalyptic number.

It is an amenable number.

766475064305 is a deficient number, since it is larger than the sum of its proper divisors (153295012867).

766475064305 is a wasteful number, since it uses less digits than its factorization.

766475064305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153295012866.

The product of its (nonzero) digits is 12700800, while the sum is 53.

The spelling of 766475064305 in words is "seven hundred sixty-six billion, four hundred seventy-five million, sixty-four thousand, three hundred five".