778048652205 has 48 divisors (see below), whose sum is σ = 1475950170240. Its totient is φ = 376022659200.

The previous prime is 778048652203. The next prime is 778048652267. The reversal of 778048652205 is 502256840877.

778048652205 is a `hidden beast` number, since 7 + 78 + 0 + 48 + 6 + 522 + 0 + 5 = 666.

It is not a de Polignac number, because 778048652205 - 2¹ = 778048652203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778048652203) 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 in 47 ways as a sum of consecutive naturals, for example, 2373090 + ... + 2680979.

It is an arithmetic number, because the mean of its divisors is an integer number (30748961880).

Almost surely, 2^778048652205 is an apocalyptic number.

It is an amenable number.

778048652205 is a deficient number, since it is larger than the sum of its proper divisors (697901518035).

778048652205 is a wasteful number, since it uses less digits than its factorization.

778048652205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054402 (or 5054399 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 778048652205 in words is "seven hundred seventy-eight billion, forty-eight million, six hundred fifty-two thousand, two hundred five".