778048652123 has 2 divisors, whose sum is σ = 778048652124. Its totient is φ = 778048652122.

The previous prime is 778048652111. The next prime is 778048652167. The reversal of 778048652123 is 321256840877.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 778048652123 - 2²² = 778044457819 is a prime.

It is not a weakly prime, because it can be changed into another prime (778048652323) 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, 389024326061 + 389024326062.

It is an arithmetic number, because the mean of its divisors is an integer number (389024326062).

Almost surely, 2^778048652123 is an apocalyptic number.

778048652123 is a deficient number, since it is larger than the sum of its proper divisors (1).

778048652123 is an equidigital number, since it uses as much as digits as its factorization.

778048652123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 778048652123 in words is "seven hundred seventy-eight billion, forty-eight million, six hundred fifty-two thousand, one hundred twenty-three".