7221958763 has 4 divisors (see below), whose sum is σ = 7225610040. Its totient is φ = 7218307488.

The previous prime is 7221958753. The next prime is 7221958781. The reversal of 7221958763 is 3678591227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3678591227 = 23 ⋅159938749.

It is a cyclic number.

It is not a de Polignac number, because 7221958763 - 2²² = 7217764459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7221958753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822670 + ... + 1826627.

It is an arithmetic number, because the mean of its divisors is an integer number (1806402510).

Almost surely, 2^7221958763 is an apocalyptic number.

7221958763 is a deficient number, since it is larger than the sum of its proper divisors (3651277).

7221958763 is a wasteful number, since it uses less digits than its factorization.

7221958763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3651276.

The product of its digits is 1270080, while the sum is 50.

The square root of 7221958763 is about 84982.1084876105. The cubic root of 7221958763 is about 1932.9398280939.

The spelling of 7221958763 in words is "seven billion, two hundred twenty-one million, nine hundred fifty-eight thousand, seven hundred sixty-three".