117989737769 has 2 divisors, whose sum is σ = 117989737770. Its totient is φ = 117989737768.

The previous prime is 117989737757. The next prime is 117989737793. The reversal of 117989737769 is 967737989711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85603056400 + 32386681369 = 292580^2 + 179963^2 .

It is a cyclic number.

It is not a de Polignac number, because 117989737769 - 2¹⁶ = 117989672233 is a prime.

It is a super-2 number, since 2×117989737769² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117989737696 and 117989737705.

It is not a weakly prime, because it can be changed into another prime (117989737069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58994868884 + 58994868885.

It is an arithmetic number, because the mean of its divisors is an integer number (58994868885).

Almost surely, 2^117989737769 is an apocalyptic number.

It is an amenable number.

117989737769 is a deficient number, since it is larger than the sum of its proper divisors (1).

117989737769 is an equidigital number, since it uses as much as digits as its factorization.

117989737769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252047376, while the sum is 74.

The spelling of 117989737769 in words is "one hundred seventeen billion, nine hundred eighty-nine million, seven hundred thirty-seven thousand, seven hundred sixty-nine".