773678078745 has 64 divisors (see below), whose sum is σ = 1459036744704. Its totient is φ = 345133336320.

The previous prime is 773678078717. The next prime is 773678078783. The reversal of 773678078745 is 547870876377.

It is not a de Polignac number, because 773678078745 - 2⁹ = 773678078233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 773678078745.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 71074 + ... + 1245956.

It is an arithmetic number, because the mean of its divisors is an integer number (22797449136).

Almost surely, 2^773678078745 is an apocalyptic number.

It is an amenable number.

773678078745 is a deficient number, since it is larger than the sum of its proper divisors (685358665959).

773678078745 is a wasteful number, since it uses less digits than its factorization.

773678078745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175222.

The product of its (nonzero) digits is 387233280, while the sum is 69.

The spelling of 773678078745 in words is "seven hundred seventy-three billion, six hundred seventy-eight million, seventy-eight thousand, seven hundred forty-five".