7221563377 has 8 divisors (see below), whose sum is σ = 8687595200. Its totient is φ = 5864126544.

The previous prime is 7221563359. The next prime is 7221563407. The reversal of 7221563377 is 7733651227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7221563377 - 2¹⁵ = 7221530609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7221563347) 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 7 ways as a sum of consecutive naturals, for example, 27148602 + ... + 27148867.

It is an arithmetic number, because the mean of its divisors is an integer number (1085949400).

Almost surely, 2^7221563377 is an apocalyptic number.

It is an amenable number.

7221563377 is a deficient number, since it is larger than the sum of its proper divisors (1466031823).

7221563377 is a wasteful number, since it uses less digits than its factorization.

7221563377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54297495.

The product of its digits is 370440, while the sum is 43.

The square root of 7221563377 is about 84979.7821661129. The cubic root of 7221563377 is about 1932.9045527473.

The spelling of 7221563377 in words is "seven billion, two hundred twenty-one million, five hundred sixty-three thousand, three hundred seventy-seven".