778048652167 has 2 divisors, whose sum is σ = 778048652168. Its totient is φ = 778048652166.

The previous prime is 778048652123. The next prime is 778048652203. The reversal of 778048652167 is 761256840877.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-778048652167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (778048652267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389024326083 + 389024326084.

It is an arithmetic number, because the mean of its divisors is an integer number (389024326084).

Almost surely, 2^778048652167 is an apocalyptic number.

778048652167 is a deficient number, since it is larger than the sum of its proper divisors (1).

778048652167 is an equidigital number, since it uses as much as digits as its factorization.

778048652167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 778048652167 in words is "seven hundred seventy-eight billion, forty-eight million, six hundred fifty-two thousand, one hundred sixty-seven".