117277615765 has 8 divisors (see below), whose sum is σ = 143040239928. Its totient is φ = 92284025280.

The previous prime is 117277615757. The next prime is 117277615771. The reversal of 117277615765 is 567516772711.

It can be written as a sum of positive squares in 4 ways, for example, as 12264676516 + 105012939249 = 110746^2 + 324057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117277615765 - 2³ = 117277615757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 192258082 + ... + 192258691.

It is an arithmetic number, because the mean of its divisors is an integer number (17880029991).

Almost surely, 2^117277615765 is an apocalyptic number.

It is an amenable number.

117277615765 is a deficient number, since it is larger than the sum of its proper divisors (25762624163).

117277615765 is an equidigital number, since it uses as much as digits as its factorization.

117277615765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384516839.

The product of its digits is 4321800, while the sum is 55.

The spelling of 117277615765 in words is "one hundred seventeen billion, two hundred seventy-seven million, six hundred fifteen thousand, seven hundred sixty-five".