4718283409921 has 3 divisors (see below), whose sum is σ = 4718285582083. Its totient is φ = 4718281237760.

The previous prime is 4718283409909. The next prime is 4718283409943. The reversal of 4718283409921 is 1299043828174.

The square root of 4718283409921 is 2172161.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3992447568321 + 725835841600 = 1998111^2 + 851960^2 .

It is not a de Polignac number, because 4718283409921 - 2²⁷ = 4718149192193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4718283400921) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1086081 + ... + 3258241.

Almost surely, 2^{4718283409921} is an apocalyptic number.

4718283409921 is the 2172161-st square number.

4718283409921 is the 1086081-st centered octagonal number.

It is an amenable number.

4718283409921 is a deficient number, since it is larger than the sum of its proper divisors (2172162).

4718283409921 is an frugal number, since it uses more digits than its factorization.

4718283409921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344322 (or 2172161 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 4718283409921 in words is "four trillion, seven hundred eighteen billion, two hundred eighty-three million, four hundred nine thousand, nine hundred twenty-one".