77757347831113 has 2 divisors, whose sum is σ = 77757347831114. Its totient is φ = 77757347831112.

The previous prime is 77757347831039. The next prime is 77757347831131. The reversal of 77757347831113 is 31113874375777.

Together with next prime (77757347831131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40720836538944 + 37036511292169 = 6381288^2 + 6085763^2 .

It is a cyclic number.

It is not a de Polignac number, because 77757347831113 - 2⁹ = 77757347830601 is a prime.

It is not a weakly prime, because it can be changed into another prime (77757347831143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38878673915556 + 38878673915557.

It is an arithmetic number, because the mean of its divisors is an integer number (38878673915557).

Almost surely, 2^{77757347831113} is an apocalyptic number.

It is an amenable number.

77757347831113 is a deficient number, since it is larger than the sum of its proper divisors (1).

77757347831113 is an equidigital number, since it uses as much as digits as its factorization.

77757347831113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72606240, while the sum is 64.

The spelling of 77757347831113 in words is "seventy-seven trillion, seven hundred fifty-seven billion, three hundred forty-seven million, eight hundred thirty-one thousand, one hundred thirteen".