56758635317 has 2 divisors, whose sum is σ = 56758635318. Its totient is φ = 56758635316.

The previous prime is 56758635287. The next prime is 56758635379. The reversal of 56758635317 is 71353685765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29087643601 + 27670991716 = 170551^2 + 166346^2 .

It is a cyclic number.

It is not a de Polignac number, because 56758635317 - 2⁸ = 56758635061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56758635517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28379317658 + 28379317659.

It is an arithmetic number, because the mean of its divisors is an integer number (28379317659).

Almost surely, 2^56758635317 is an apocalyptic number.

It is an amenable number.

56758635317 is a deficient number, since it is larger than the sum of its proper divisors (1).

56758635317 is an equidigital number, since it uses as much as digits as its factorization.

56758635317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876000, while the sum is 56.

The spelling of 56758635317 in words is "fifty-six billion, seven hundred fifty-eight million, six hundred thirty-five thousand, three hundred seventeen".