117844141993 has 4 divisors (see below), whose sum is σ = 118743715728. Its totient is φ = 116944568260.

The previous prime is 117844141991. The next prime is 117844142021. The reversal of 117844141993 is 399141448711.

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 117844141993 - 2¹ = 117844141991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117844141993.

It is not an unprimeable number, because it can be changed into a prime (117844141991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449786671 + ... + 449786932.

It is an arithmetic number, because the mean of its divisors is an integer number (29685928932).

Almost surely, 2^117844141993 is an apocalyptic number.

It is an amenable number.

117844141993 is a deficient number, since it is larger than the sum of its proper divisors (899573735).

117844141993 is an equidigital number, since it uses as much as digits as its factorization.

117844141993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899573734.

The product of its digits is 870912, while the sum is 52.

The spelling of 117844141993 in words is "one hundred seventeen billion, eight hundred forty-four million, one hundred forty-one thousand, nine hundred ninety-three".