6395161867 has 4 divisors (see below), whose sum is σ = 6615684720. Its totient is φ = 6174639016.

The previous prime is 6395161783. The next prime is 6395161897. The reversal of 6395161867 is 7681615936.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6395161867 - 2³¹ = 4247678219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6395161897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110261383 + ... + 110261440.

It is an arithmetic number, because the mean of its divisors is an integer number (1653921180).

Almost surely, 2^6395161867 is an apocalyptic number.

6395161867 is a deficient number, since it is larger than the sum of its proper divisors (220522853).

6395161867 is a wasteful number, since it uses less digits than its factorization.

6395161867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220522852.

The product of its digits is 1632960, while the sum is 52.

The square root of 6395161867 is about 79969.7559518597. The cubic root of 6395161867 is about 1856.1675691692.

The spelling of 6395161867 in words is "six billion, three hundred ninety-five million, one hundred sixty-one thousand, eight hundred sixty-seven".