777136013 has 2 divisors, whose sum is σ = 777136014. Its totient is φ = 777136012.

The previous prime is 777135973. The next prime is 777136021. The reversal of 777136013 is 310631777.

It is a happy number.

777136013 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., 692900329 + 84235684 = 26323^2 + 9178^2 .

It is an emirp because it is prime and its reverse (310631777) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 777136013 - 2²² = 772941709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (777136513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388568006 + 388568007.

It is an arithmetic number, because the mean of its divisors is an integer number (388568007).

Almost surely, 2^777136013 is an apocalyptic number.

It is an amenable number.

777136013 is a deficient number, since it is larger than the sum of its proper divisors (1).

777136013 is an equidigital number, since it uses as much as digits as its factorization.

777136013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 777136013 is about 27877.1593423720. The cubic root of 777136013 is about 919.3883824744.

The spelling of 777136013 in words is "seven hundred seventy-seven million, one hundred thirty-six thousand, thirteen".