3184718472449 has 4 divisors (see below), whose sum is σ = 3185411258964. Its totient is φ = 3184025685936.

The previous prime is 3184718472413. The next prime is 3184718472457. The reversal of 3184718472449 is 9442748174813.

It is a happy number.

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 90004200049 + 3094714272400 = 300007^2 + 1759180^2 .

It is a cyclic number.

It is not a de Polignac number, because 3184718472449 - 2²⁴ = 3184701695233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3184718472391 and 3184718472400.

It is not an unprimeable number, because it can be changed into a prime (3184718472149) 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, 346386362 + ... + 346395555.

It is an arithmetic number, because the mean of its divisors is an integer number (796352814741).

Almost surely, 2^{3184718472449} is an apocalyptic number.

It is an amenable number.

3184718472449 is a deficient number, since it is larger than the sum of its proper divisors (692786515).

3184718472449 is an equidigital number, since it uses as much as digits as its factorization.

3184718472449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692786514.

The product of its digits is 43352064, while the sum is 62.

The spelling of 3184718472449 in words is "three trillion, one hundred eighty-four billion, seven hundred eighteen million, four hundred seventy-two thousand, four hundred forty-nine".