117158009921 has 8 divisors (see below), whose sum is σ = 118398184320. Its totient is φ = 115919811072.

The previous prime is 117158009867. The next prime is 117158009929. The reversal of 117158009921 is 129900851711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117158009921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117158009929) 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, 374501 + ... + 612018.

It is an arithmetic number, because the mean of its divisors is an integer number (14799773040).

Almost surely, 2^117158009921 is an apocalyptic number.

It is an amenable number.

117158009921 is a deficient number, since it is larger than the sum of its proper divisors (1240174399).

117158009921 is a wasteful number, since it uses less digits than its factorization.

117158009921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987775.

The product of its (nonzero) digits is 45360, while the sum is 44.

The spelling of 117158009921 in words is "one hundred seventeen billion, one hundred fifty-eight million, nine thousand, nine hundred twenty-one".