117765366649 has 4 divisors (see below), whose sum is σ = 134588990464. Its totient is φ = 100941742836.

The previous prime is 117765366611. The next prime is 117765366679. The reversal of 117765366649 is 946663567711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117765366649 - 2¹³ = 117765358457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117765366679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8411811897 + ... + 8411811910.

It is an arithmetic number, because the mean of its divisors is an integer number (33647247616).

Almost surely, 2^117765366649 is an apocalyptic number.

It is an amenable number.

117765366649 is a deficient number, since it is larger than the sum of its proper divisors (16823623815).

117765366649 is an equidigital number, since it uses as much as digits as its factorization.

117765366649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16823623814.

The product of its digits is 34292160, while the sum is 61.

The spelling of 117765366649 in words is "one hundred seventeen billion, seven hundred sixty-five million, three hundred sixty-six thousand, six hundred forty-nine".