770778356822 has 48 divisors (see below), whose sum is σ = 1264044321792. Its totient is φ = 352076537520.

The previous prime is 770778356809. The next prime is 770778356827. The reversal of 770778356822 is 228653877077.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770778356827) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6273263 + ... + 6394949.

It is an arithmetic number, because the mean of its divisors is an integer number (26334256704).

Almost surely, 2^770778356822 is an apocalyptic number.

770778356822 is a deficient number, since it is larger than the sum of its proper divisors (493265964970).

770778356822 is a wasteful number, since it uses less digits than its factorization.

770778356822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122041 (or 122022 counting only the distinct ones).

The product of its (nonzero) digits is 55319040, while the sum is 62.

The spelling of 770778356822 in words is "seven hundred seventy billion, seven hundred seventy-eight million, three hundred fifty-six thousand, eight hundred twenty-two".