2855163847 has 2 divisors, whose sum is σ = 2855163848. Its totient is φ = 2855163846.

The previous prime is 2855163797. The next prime is 2855163937. The reversal of 2855163847 is 7483615582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2855163847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2855163847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2855163247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427581923 + 1427581924.

It is an arithmetic number, because the mean of its divisors is an integer number (1427581924).

Almost surely, 2^2855163847 is an apocalyptic number.

2855163847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855163847 is an equidigital number, since it uses as much as digits as its factorization.

2855163847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 49.

The square root of 2855163847 is about 53433.7332309843. The cubic root of 2855163847 is about 1418.6557149993.

The spelling of 2855163847 in words is "two billion, eight hundred fifty-five million, one hundred sixty-three thousand, eight hundred forty-seven".