2856892139 has 2 divisors, whose sum is σ = 2856892140. Its totient is φ = 2856892138.

The previous prime is 2856892111. The next prime is 2856892201. The reversal of 2856892139 is 9312986582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2856892139 - 2⁸ = 2856891883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2856892439) 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, 1428446069 + 1428446070.

It is an arithmetic number, because the mean of its divisors is an integer number (1428446070).

Almost surely, 2^2856892139 is an apocalyptic number.

2856892139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2856892139 is an equidigital number, since it uses as much as digits as its factorization.

2856892139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 2856892139 is about 53449.9030775548. The cubic root of 2856892139 is about 1418.9419048529.

The spelling of 2856892139 in words is "two billion, eight hundred fifty-six million, eight hundred ninety-two thousand, one hundred thirty-nine".