117989136997 has 2 divisors, whose sum is σ = 117989136998. Its totient is φ = 117989136996.

The previous prime is 117989136959. The next prime is 117989137031. The reversal of 117989136997 is 799631989711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75441411556 + 42547725441 = 274666^2 + 206271^2 .

It is an emirp because it is prime and its reverse (799631989711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117989136997 is a prime.

It is a super-3 number, since 3×117989136997³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117989136917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58994568498 + 58994568499.

It is an arithmetic number, because the mean of its divisors is an integer number (58994568499).

Almost surely, 2^117989136997 is an apocalyptic number.

It is an amenable number.

117989136997 is a deficient number, since it is larger than the sum of its proper divisors (1).

117989136997 is an equidigital number, since it uses as much as digits as its factorization.

117989136997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46294416, while the sum is 70.

The spelling of 117989136997 in words is "one hundred seventeen billion, nine hundred eighty-nine million, one hundred thirty-six thousand, nine hundred ninety-seven".