117786656593 has 2 divisors, whose sum is σ = 117786656594. Its totient is φ = 117786656592.

The previous prime is 117786656557. The next prime is 117786656651. The reversal of 117786656593 is 395656687711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78182870544 + 39603786049 = 279612^2 + 199007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117786656593 is a prime.

It is not a weakly prime, because it can be changed into another prime (117786656543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58893328296 + 58893328297.

It is an arithmetic number, because the mean of its divisors is an integer number (58893328297).

Almost surely, 2^117786656593 is an apocalyptic number.

It is an amenable number.

117786656593 is a deficient number, since it is larger than the sum of its proper divisors (1).

117786656593 is an equidigital number, since it uses as much as digits as its factorization.

117786656593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57153600, while the sum is 64.

The spelling of 117786656593 in words is "one hundred seventeen billion, seven hundred eighty-six million, six hundred fifty-six thousand, five hundred ninety-three".