2855047747 has 2 divisors, whose sum is σ = 2855047748. Its totient is φ = 2855047746.

The previous prime is 2855047697. The next prime is 2855047771. The reversal of 2855047747 is 7477405582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2855047747 - 2²³ = 2846659139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2855047747.

It is not a weakly prime, because it can be changed into another prime (2855041747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427523873 + 1427523874.

It is an arithmetic number, because the mean of its divisors is an integer number (1427523874).

Almost surely, 2^2855047747 is an apocalyptic number.

2855047747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855047747 is an equidigital number, since it uses as much as digits as its factorization.

2855047747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2195200, while the sum is 49.

The square root of 2855047747 is about 53432.6468275716. The cubic root of 2855047747 is about 1418.6364857280.

The spelling of 2855047747 in words is "two billion, eight hundred fifty-five million, forty-seven thousand, seven hundred forty-seven".