6469071691 has 2 divisors, whose sum is σ = 6469071692. Its totient is φ = 6469071690.

The previous prime is 6469071677. The next prime is 6469071743. The reversal of 6469071691 is 1961709646.

6469071691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6469071691 - 2²³ = 6460683083 is a prime.

It is not a weakly prime, because it can be changed into another prime (6469071671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3234535845 + 3234535846.

It is an arithmetic number, because the mean of its divisors is an integer number (3234535846).

Almost surely, 2^6469071691 is an apocalyptic number.

6469071691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6469071691 is an equidigital number, since it uses as much as digits as its factorization.

6469071691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 6469071691 is about 80430.5395418929. The cubic root of 6469071691 is about 1863.2908645638.

The spelling of 6469071691 in words is "six billion, four hundred sixty-nine million, seventy-one thousand, six hundred ninety-one".