6719484521 has 2 divisors, whose sum is σ = 6719484522. Its totient is φ = 6719484520.

The previous prime is 6719484503. The next prime is 6719484557. The reversal of 6719484521 is 1254849176.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5092249600 + 1627234921 = 71360^2 + 40339^2 .

It is a cyclic number.

It is not a de Polignac number, because 6719484521 - 2¹⁴ = 6719468137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6719484581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359742260 + 3359742261.

It is an arithmetic number, because the mean of its divisors is an integer number (3359742261).

Almost surely, 2^6719484521 is an apocalyptic number.

It is an amenable number.

6719484521 is a deficient number, since it is larger than the sum of its proper divisors (1).

6719484521 is an equidigital number, since it uses as much as digits as its factorization.

6719484521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The square root of 6719484521 is about 81972.4619674193. The cubic root of 6719484521 is about 1887.0293394608.

The spelling of 6719484521 in words is "six billion, seven hundred nineteen million, four hundred eighty-four thousand, five hundred twenty-one".