117777789713 has 2 divisors, whose sum is σ = 117777789714. Its totient is φ = 117777789712.

The previous prime is 117777789683. The next prime is 117777789721. The reversal of 117777789713 is 317987777711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101080756624 + 16697033089 = 317932^2 + 129217^2 .

It is a cyclic number.

It is not a de Polignac number, because 117777789713 - 2⁸ = 117777789457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117777789713.

It is not a weakly prime, because it can be changed into another prime (117777789793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58888894856 + 58888894857.

It is an arithmetic number, because the mean of its divisors is an integer number (58888894857).

Almost surely, 2^117777789713 is an apocalyptic number.

It is an amenable number.

117777789713 is a deficient number, since it is larger than the sum of its proper divisors (1).

117777789713 is an equidigital number, since it uses as much as digits as its factorization.

117777789713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25412184, while the sum is 65.

The spelling of 117777789713 in words is "one hundred seventeen billion, seven hundred seventy-seven million, seven hundred eighty-nine thousand, seven hundred thirteen".