117778808535 has 8 divisors (see below), whose sum is σ = 188446093680. Its totient is φ = 62815364544.

The previous prime is 117778808527. The next prime is 117778808551. The reversal of 117778808535 is 535808877711.

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

It is not a de Polignac number, because 117778808535 - 2³ = 117778808527 is a prime.

It is a Smith number, since the sum of its digits (60) 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3925960270 + ... + 3925960299.

It is an arithmetic number, because the mean of its divisors is an integer number (23555761710).

Almost surely, 2^117778808535 is an apocalyptic number.

117778808535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117778808535 is a deficient number, since it is larger than the sum of its proper divisors (70667285145).

117778808535 is an equidigital number, since it uses as much as digits as its factorization.

117778808535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851920577.

The product of its (nonzero) digits is 13171200, while the sum is 60.

The spelling of 117778808535 in words is "one hundred seventeen billion, seven hundred seventy-eight million, eight hundred eight thousand, five hundred thirty-five".