117609977389 has 4 divisors (see below), whose sum is σ = 119098711360. Its totient is φ = 116121243420.

The previous prime is 117609977339. The next prime is 117609977411. The reversal of 117609977389 is 983779906711.

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 117609977389 - 2²¹ = 117607880237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117609977339) 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 in 3 ways as a sum of consecutive naturals, for example, 744366867 + ... + 744367024.

It is an arithmetic number, because the mean of its divisors is an integer number (29774677840).

Almost surely, 2^117609977389 is an apocalyptic number.

It is an amenable number.

117609977389 is a deficient number, since it is larger than the sum of its proper divisors (1488733971).

117609977389 is an equidigital number, since it uses as much as digits as its factorization.

117609977389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488733970.

The product of its (nonzero) digits is 36006768, while the sum is 67.

The spelling of 117609977389 in words is "one hundred seventeen billion, six hundred nine million, nine hundred seventy-seven thousand, three hundred eighty-nine".