11916582893 has 4 divisors (see below), whose sum is σ = 11917327260. Its totient is φ = 11915838528.

The previous prime is 11916582857. The next prime is 11916582901. The reversal of 11916582893 is 39828561911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39828561911 = 17 ⋅2342856583.

It can be written as a sum of positive squares in 2 ways, for example, as 1397413924 + 10519168969 = 37382^2 + 102563^2 .

It is a cyclic number.

It is not a de Polignac number, because 11916582893 - 2⁶ = 11916582829 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 (11916582823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347630 + ... + 380367.

It is an arithmetic number, because the mean of its divisors is an integer number (2979331815).

Almost surely, 2^11916582893 is an apocalyptic number.

It is an amenable number.

11916582893 is a deficient number, since it is larger than the sum of its proper divisors (744367).

11916582893 is an equidigital number, since it uses as much as digits as its factorization.

11916582893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744366.

The product of its digits is 933120, while the sum is 53.

The spelling of 11916582893 in words is "eleven billion, nine hundred sixteen million, five hundred eighty-two thousand, eight hundred ninety-three".