6721888471 has 2 divisors, whose sum is σ = 6721888472. Its totient is φ = 6721888470.

The previous prime is 6721888463. The next prime is 6721888487. The reversal of 6721888471 is 1748881276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6721888471 - 2³ = 6721888463 is a prime.

It is a super-3 number, since 3×6721888471³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6721880471) 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 as a sum of consecutive naturals, namely, 3360944235 + 3360944236.

It is an arithmetic number, because the mean of its divisors is an integer number (3360944236).

Almost surely, 2^6721888471 is an apocalyptic number.

6721888471 is a deficient number, since it is larger than the sum of its proper divisors (1).

6721888471 is an equidigital number, since it uses as much as digits as its factorization.

6721888471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 52.

The square root of 6721888471 is about 81987.1238122182. The cubic root of 6721888471 is about 1887.2543459725.

The spelling of 6721888471 in words is "six billion, seven hundred twenty-one million, eight hundred eighty-eight thousand, four hundred seventy-one".