117908493423 has 32 divisors (see below), whose sum is σ = 180028992000. Its totient is φ = 67241840256.

The previous prime is 117908493421. The next prime is 117908493431. The reversal of 117908493423 is 324394809711.

It is a happy number.

It is not a de Polignac number, because 117908493423 - 2¹ = 117908493421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117908493421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35739028 + ... + 35742326.

It is an arithmetic number, because the mean of its divisors is an integer number (5625906000).

Almost surely, 2^117908493423 is an apocalyptic number.

117908493423 is a deficient number, since it is larger than the sum of its proper divisors (62120498577).

117908493423 is a wasteful number, since it uses less digits than its factorization.

117908493423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 117908493423 in words is "one hundred seventeen billion, nine hundred eight million, four hundred ninety-three thousand, four hundred twenty-three".