772768891171 has 2 divisors, whose sum is σ = 772768891172. Its totient is φ = 772768891170.

The previous prime is 772768891127. The next prime is 772768891177. The reversal of 772768891171 is 171198867277.

772768891171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 772768891171 - 2¹³ = 772768882979 is a prime.

It is not a weakly prime, because it can be changed into another prime (772768891177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386384445585 + 386384445586.

It is an arithmetic number, because the mean of its divisors is an integer number (386384445586).

Almost surely, 2^772768891171 is an apocalyptic number.

772768891171 is a deficient number, since it is larger than the sum of its proper divisors (1).

772768891171 is an equidigital number, since it uses as much as digits as its factorization.

772768891171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16595712, while the sum is 64.

The spelling of 772768891171 in words is "seven hundred seventy-two billion, seven hundred sixty-eight million, eight hundred ninety-one thousand, one hundred seventy-one".