2378317823 has 8 divisors (see below), whose sum is σ = 2718523392. Its totient is φ = 2038223736.

The previous prime is 2378317819. The next prime is 2378317847. The reversal of 2378317823 is 3287138732.

It is a happy number.

It is a Cunningham number, because it is equal to 48768²-1.

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

It is a cyclic number.

It is not a de Polignac number, because 2378317823 - 2² = 2378317819 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 (2378317853) 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, 24386 + ... + 73152.

It is an arithmetic number, because the mean of its divisors is an integer number (339815424).

Almost surely, 2^2378317823 is an apocalyptic number.

2378317823 is a deficient number, since it is larger than the sum of its proper divisors (340205569).

2378317823 is an equidigital number, since it uses as much as digits as its factorization.

2378317823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55741.

The product of its digits is 338688, while the sum is 44.

The square root of 2378317823 is about 48767.9999897474. Note that the first 4 decimals coincide. The cubic root of 2378317823 is about 1334.8218183922.

The spelling of 2378317823 in words is "two billion, three hundred seventy-eight million, three hundred seventeen thousand, eight hundred twenty-three".