772630213217 has 2 divisors, whose sum is σ = 772630213218. Its totient is φ = 772630213216.

The previous prime is 772630213213. The next prime is 772630213219. The reversal of 772630213217 is 712312036277.

772630213217 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 can be written as a sum of positive squares in only one way, i.e., 531155270416 + 241474942801 = 728804^2 + 491401^2 .

It is a cyclic number.

It is not a de Polignac number, because 772630213217 - 2² = 772630213213 is a prime.

Together with 772630213219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (772630213213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386315106608 + 386315106609.

It is an arithmetic number, because the mean of its divisors is an integer number (386315106609).

Almost surely, 2^772630213217 is an apocalyptic number.

It is an amenable number.

772630213217 is a deficient number, since it is larger than the sum of its proper divisors (1).

772630213217 is an equidigital number, since it uses as much as digits as its factorization.

772630213217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The spelling of 772630213217 in words is "seven hundred seventy-two billion, six hundred thirty million, two hundred thirteen thousand, two hundred seventeen".