11897348873 has 4 divisors (see below), whose sum is σ = 11934880260. Its totient is φ = 11859817488.

The previous prime is 11897348863. The next prime is 11897348909. The reversal of 11897348873 is 37884379811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5644967689 + 6252381184 = 75133^2 + 79072^2 .

It is a cyclic number.

It is not a de Polignac number, because 11897348873 - 2¹⁶ = 11897283337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11897348863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18765218 + ... + 18765851.

It is an arithmetic number, because the mean of its divisors is an integer number (2983720065).

Almost surely, 2^11897348873 is an apocalyptic number.

It is an amenable number.

11897348873 is a deficient number, since it is larger than the sum of its proper divisors (37531387).

11897348873 is an equidigital number, since it uses as much as digits as its factorization.

11897348873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37531386.

The product of its digits is 8128512, while the sum is 59.

The spelling of 11897348873 in words is "eleven billion, eight hundred ninety-seven million, three hundred forty-eight thousand, eight hundred seventy-three".