2856642195 has 16 divisors (see below), whose sum is σ = 4986139392. Its totient is φ = 1385038560.

The previous prime is 2856642193. The next prime is 2856642203. The reversal of 2856642195 is 5912466582.

It is not a de Polignac number, because 2856642195 - 2¹ = 2856642193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2856642193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8656327 + ... + 8656656.

It is an arithmetic number, because the mean of its divisors is an integer number (311633712).

Almost surely, 2^2856642195 is an apocalyptic number.

2856642195 is a deficient number, since it is larger than the sum of its proper divisors (2129497197).

2856642195 is a wasteful number, since it uses less digits than its factorization.

2856642195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17313002.

The product of its digits is 1036800, while the sum is 48.

The square root of 2856642195 is about 53447.5649117899. The cubic root of 2856642195 is about 1418.9005234798.

The spelling of 2856642195 in words is "two billion, eight hundred fifty-six million, six hundred forty-two thousand, one hundred ninety-five".