11874220847 has 4 divisors (see below), whose sum is σ = 12024527520. Its totient is φ = 11723914176.

The previous prime is 11874220789. The next prime is 11874220871. The reversal of 11874220847 is 74802247811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74802247811 = 241 ⋅310382771.

It is a cyclic number.

It is not a de Polignac number, because 11874220847 - 2³² = 7579253551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11874220798 and 11874220807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11874220747) 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, 75153218 + ... + 75153375.

It is an arithmetic number, because the mean of its divisors is an integer number (3006131880).

Almost surely, 2^11874220847 is an apocalyptic number.

11874220847 is a deficient number, since it is larger than the sum of its proper divisors (150306673).

11874220847 is an equidigital number, since it uses as much as digits as its factorization.

11874220847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150306672.

The product of its (nonzero) digits is 200704, while the sum is 44.

The spelling of 11874220847 in words is "eleven billion, eight hundred seventy-four million, two hundred twenty thousand, eight hundred forty-seven".