4471191114821 has 8 divisors (see below), whose sum is σ = 4492197117720. Its totient is φ = 4450200636672.

The previous prime is 4471191114749. The next prime is 4471191114827. The reversal of 4471191114821 is 1284111911744.

It can be written as a sum of positive squares in 4 ways, for example, as 593186474596 + 3878004640225 = 770186^2 + 1969265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4471191114821 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 (4471191114827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3303626 + ... + 4456043.

It is an arithmetic number, because the mean of its divisors is an integer number (561524639715).

Almost surely, 2^{4471191114821} is an apocalyptic number.

It is an amenable number.

4471191114821 is a deficient number, since it is larger than the sum of its proper divisors (21006002899).

4471191114821 is a wasteful number, since it uses less digits than its factorization.

4471191114821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762375.

The product of its digits is 64512, while the sum is 44.

The spelling of 4471191114821 in words is "four trillion, four hundred seventy-one billion, one hundred ninety-one million, one hundred fourteen thousand, eight hundred twenty-one".