11903974163 has 4 divisors (see below), whose sum is σ = 11911948848. Its totient is φ = 11895999480.

The previous prime is 11903974157. The next prime is 11903974189. The reversal of 11903974163 is 36147930911.

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 11903974163 - 2⁶ = 11903974099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11903974193) 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, 3985103 + ... + 3988088.

It is an arithmetic number, because the mean of its divisors is an integer number (2977987212).

Almost surely, 2^11903974163 is an apocalyptic number.

11903974163 is a deficient number, since it is larger than the sum of its proper divisors (7974685).

11903974163 is an equidigital number, since it uses as much as digits as its factorization.

11903974163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7974684.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 11903974163 in words is "eleven billion, nine hundred three million, nine hundred seventy-four thousand, one hundred sixty-three".