13810978312163 has 4 divisors (see below), whose sum is σ = 14537871907560. Its totient is φ = 13084084716768.

The previous prime is 13810978312141. The next prime is 13810978312249. The reversal of 13810978312163 is 36121387901831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13810978312163 - 2¹² = 13810978308067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13810977312163) 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, 363446797670 + ... + 363446797707.

It is an arithmetic number, because the mean of its divisors is an integer number (3634467976890).

Almost surely, 2^{13810978312163} is an apocalyptic number.

13810978312163 is a deficient number, since it is larger than the sum of its proper divisors (726893595397).

13810978312163 is an equidigital number, since it uses as much as digits as its factorization.

13810978312163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726893595396.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 13810978312163 in words is "thirteen trillion, eight hundred ten billion, nine hundred seventy-eight million, three hundred twelve thousand, one hundred sixty-three".