7228643573 has 4 divisors (see below), whose sum is σ = 7542932448. Its totient is φ = 6914354700.

The previous prime is 7228643563. The next prime is 7228643599. The reversal of 7228643573 is 3753468227.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3753468227 = 3167 ⋅1185181.

It is a cyclic number.

It is not a de Polignac number, because 7228643573 - 2⁶ = 7228643509 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 (7228643563) 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, 157144403 + ... + 157144448.

It is an arithmetic number, because the mean of its divisors is an integer number (1885733112).

Almost surely, 2^7228643573 is an apocalyptic number.

It is an amenable number.

7228643573 is a deficient number, since it is larger than the sum of its proper divisors (314288875).

7228643573 is a wasteful number, since it uses less digits than its factorization.

7228643573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314288874.

The product of its digits is 1693440, while the sum is 47.

The square root of 7228643573 is about 85021.4300808920. The cubic root of 7228643573 is about 1933.5360352635.

The spelling of 7228643573 in words is "seven billion, two hundred twenty-eight million, six hundred forty-three thousand, five hundred seventy-three".