777066013 has 2 divisors, whose sum is σ = 777066014. Its totient is φ = 777066012.

The previous prime is 777065999. The next prime is 777066077. The reversal of 777066013 is 310660777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552156004 + 224910009 = 23498^2 + 14997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-777066013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (777066713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388533006 + 388533007.

It is an arithmetic number, because the mean of its divisors is an integer number (388533007).

Almost surely, 2^777066013 is an apocalyptic number.

It is an amenable number.

777066013 is a deficient number, since it is larger than the sum of its proper divisors (1).

777066013 is an equidigital number, since it uses as much as digits as its factorization.

777066013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 777066013 is about 27875.9038059755. The cubic root of 777066013 is about 919.3607772169.

The spelling of 777066013 in words is "seven hundred seventy-seven million, sixty-six thousand, thirteen".