7222873453 has 4 divisors (see below), whose sum is σ = 7647748380. Its totient is φ = 6797998528.

The previous prime is 7222873447. The next prime is 7222873507. The reversal of 7222873453 is 3543782227.

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 6397920169 + 824953284 = 79987^2 + 28722^2 .

It is a cyclic number.

It is not a de Polignac number, because 7222873453 - 2⁹ = 7222872941 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 (7222873403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212437438 + ... + 212437471.

It is an arithmetic number, because the mean of its divisors is an integer number (1911937095).

Almost surely, 2^7222873453 is an apocalyptic number.

It is an amenable number.

7222873453 is a deficient number, since it is larger than the sum of its proper divisors (424874927).

7222873453 is a wasteful number, since it uses less digits than its factorization.

7222873453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424874926.

The product of its digits is 564480, while the sum is 43.

The square root of 7222873453 is about 84987.4899794081. The cubic root of 7222873453 is about 1933.0214295057.

The spelling of 7222873453 in words is "seven billion, two hundred twenty-two million, eight hundred seventy-three thousand, four hundred fifty-three".