4472218657 has 4 divisors (see below), whose sum is σ = 4473267120. Its totient is φ = 4471170196.

The previous prime is 4472218643. The next prime is 4472218669. The reversal of 4472218657 is 7568122744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4472218657 - 2⁷ = 4472218529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4472218607) 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, 517807 + ... + 526372.

It is an arithmetic number, because the mean of its divisors is an integer number (1118316780).

Almost surely, 2^4472218657 is an apocalyptic number.

It is an amenable number.

4472218657 is a deficient number, since it is larger than the sum of its proper divisors (1048463).

4472218657 is a wasteful number, since it uses less digits than its factorization.

4472218657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048462.

The product of its digits is 752640, while the sum is 46.

The square root of 4472218657 is about 66874.6488364612. The cubic root of 4472218657 is about 1647.5591282719.

The spelling of 4472218657 in words is "four billion, four hundred seventy-two million, two hundred eighteen thousand, six hundred fifty-seven".