7042171667 has 2 divisors, whose sum is σ = 7042171668. Its totient is φ = 7042171666.

The previous prime is 7042171651. The next prime is 7042171687. The reversal of 7042171667 is 7661712407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7042171667 - 2⁴ = 7042171651 is a prime.

It is not a weakly prime, because it can be changed into another prime (7042171607) 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, 3521085833 + 3521085834.

It is an arithmetic number, because the mean of its divisors is an integer number (3521085834).

Almost surely, 2^7042171667 is an apocalyptic number.

7042171667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042171667 is an equidigital number, since it uses as much as digits as its factorization.

7042171667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 7042171667 is about 83917.6481260051. The cubic root of 7042171667 is about 1916.7649939357.

The spelling of 7042171667 in words is "seven billion, forty-two million, one hundred seventy-one thousand, six hundred sixty-seven".