7018162809 has 32 divisors (see below), whose sum is σ = 10863390720. Its totient is φ = 3947458752.

The previous prime is 7018162807. The next prime is 7018162847. The reversal of 7018162809 is 9082618107.

It is not a de Polignac number, because 7018162809 - 2¹ = 7018162807 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7018162807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351507 + ... + 370935.

It is an arithmetic number, because the mean of its divisors is an integer number (339480960).

Almost surely, 2^7018162809 is an apocalyptic number.

It is an amenable number.

7018162809 is a deficient number, since it is larger than the sum of its proper divisors (3845227911).

7018162809 is a wasteful number, since it uses less digits than its factorization.

7018162809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19709.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 7018162809 is about 83774.4758801868. The cubic root of 7018162809 is about 1914.5842397645.

The spelling of 7018162809 in words is "seven billion, eighteen million, one hundred sixty-two thousand, eight hundred nine".