2056189787 has 2 divisors, whose sum is σ = 2056189788. Its totient is φ = 2056189786.

The previous prime is 2056189777. The next prime is 2056189829. The reversal of 2056189787 is 7879816502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056189787 - 2¹⁶ = 2056124251 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056189717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028094893 + 1028094894.

It is an arithmetic number, because the mean of its divisors is an integer number (1028094894).

Almost surely, 2^2056189787 is an apocalyptic number.

2056189787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056189787 is an equidigital number, since it uses as much as digits as its factorization.

2056189787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The square root of 2056189787 is about 45345.2289331524. The cubic root of 2056189787 is about 1271.6113605342.

The spelling of 2056189787 in words is "two billion, fifty-six million, one hundred eighty-nine thousand, seven hundred eighty-seven".