7927221849 has 16 divisors (see below), whose sum is σ = 10612413504. Its totient is φ = 5263467200.

The previous prime is 7927221817. The next prime is 7927221859. The reversal of 7927221849 is 9481227297.

It is a cyclic number.

It is not a de Polignac number, because 7927221849 - 2⁵ = 7927221817 is a prime.

It is a super-3 number, since 3×7927221849³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7927221859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773539 + ... + 783719.

It is an arithmetic number, because the mean of its divisors is an integer number (663275844).

Almost surely, 2^7927221849 is an apocalyptic number.

It is an amenable number.

7927221849 is a deficient number, since it is larger than the sum of its proper divisors (2685191655).

7927221849 is a wasteful number, since it uses less digits than its factorization.

7927221849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11208.

The product of its digits is 1016064, while the sum is 51.

The square root of 7927221849 is about 89034.9473465335. The cubic root of 7927221849 is about 1993.9166693881.

The spelling of 7927221849 in words is "seven billion, nine hundred twenty-seven million, two hundred twenty-one thousand, eight hundred forty-nine".