117992893487 has 8 divisors (see below), whose sum is σ = 135526656000. Its totient is φ = 100628539704.

The previous prime is 117992893481. The next prime is 117992893493. The reversal of 117992893487 is 784398299711.

It is an interprime number because it is at equal distance from previous prime (117992893481) and next prime (117992893493).

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

It is not a de Polignac number, because 117992893487 - 2⁴ = 117992893471 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 (117992893481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42350687 + ... + 42353472.

It is an arithmetic number, because the mean of its divisors is an integer number (16940832000).

Almost surely, 2^117992893487 is an apocalyptic number.

117992893487 is a deficient number, since it is larger than the sum of its proper divisors (17533762513).

117992893487 is an equidigital number, since it uses as much as digits as its factorization.

117992893487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84704365.

The product of its digits is 54867456, while the sum is 68.

The spelling of 117992893487 in words is "one hundred seventeen billion, nine hundred ninety-two million, eight hundred ninety-three thousand, four hundred eighty-seven".