117777784321 has 8 divisors (see below), whose sum is σ = 117985629600. Its totient is φ = 117570071520.

The previous prime is 117777784273. The next prime is 117777784381. The reversal of 117777784321 is 123487777711.

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

It is a cyclic number.

It is not a de Polignac number, because 117777784321 - 2²³ = 117769395713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117777784381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838925 + ... + 1901893.

It is an arithmetic number, because the mean of its divisors is an integer number (14748203700).

Almost surely, 2^117777784321 is an apocalyptic number.

It is an amenable number.

117777784321 is a deficient number, since it is larger than the sum of its proper divisors (207845279).

117777784321 is an equidigital number, since it uses as much as digits as its factorization.

117777784321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66239.

The product of its digits is 3226944, while the sum is 55.

The spelling of 117777784321 in words is "one hundred seventeen billion, seven hundred seventy-seven million, seven hundred eighty-four thousand, three hundred twenty-one".