6921120473 has 2 divisors, whose sum is σ = 6921120474. Its totient is φ = 6921120472.

The previous prime is 6921120469. The next prime is 6921120517. The reversal of 6921120473 is 3740211296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3581783104 + 3339337369 = 59848^2 + 57787^2 .

It is a cyclic number.

It is not a de Polignac number, because 6921120473 - 2² = 6921120469 is a prime.

It is not a weakly prime, because it can be changed into another prime (6921120403) 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 as a sum of consecutive naturals, namely, 3460560236 + 3460560237.

It is an arithmetic number, because the mean of its divisors is an integer number (3460560237).

Almost surely, 2^6921120473 is an apocalyptic number.

It is an amenable number.

6921120473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6921120473 is an equidigital number, since it uses as much as digits as its factorization.

6921120473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6921120473 is about 83193.2718012701. The cubic root of 6921120473 is about 1905.7187325699.

The spelling of 6921120473 in words is "six billion, nine hundred twenty-one million, one hundred twenty thousand, four hundred seventy-three".