117779354189 has 16 divisors (see below), whose sum is σ = 139263169920. Its totient is φ = 97460919360.

The previous prime is 117779354167. The next prime is 117779354221. The reversal of 117779354189 is 981453977711.

It is a de Polignac number, because none of the positive numbers 2^k-117779354189 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117779384189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945994 + ... + 2005604.

It is an arithmetic number, because the mean of its divisors is an integer number (8703948120).

Almost surely, 2^117779354189 is an apocalyptic number.

It is an amenable number.

117779354189 is a deficient number, since it is larger than the sum of its proper divisors (21483815731).

117779354189 is an equidigital number, since it uses as much as digits as its factorization.

117779354189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69380.

The product of its digits is 13335840, while the sum is 62.

The spelling of 117779354189 in words is "one hundred seventeen billion, seven hundred seventy-nine million, three hundred fifty-four thousand, one hundred eighty-nine".