2855187857047 has 4 divisors (see below), whose sum is σ = 2855243061280. Its totient is φ = 2855132652816.

The previous prime is 2855187856987. The next prime is 2855187857059. The reversal of 2855187857047 is 7407587815582.

2855187857047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2855187857047 - 2¹¹ = 2855187854999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855187857647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27524463 + ... + 27628000.

It is an arithmetic number, because the mean of its divisors is an integer number (713810765320).

Almost surely, 2^{2855187857047} is an apocalyptic number.

2855187857047 is a deficient number, since it is larger than the sum of its proper divisors (55204233).

2855187857047 is an equidigital number, since it uses as much as digits as its factorization.

2855187857047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55204232.

The product of its (nonzero) digits is 175616000, while the sum is 67.

The spelling of 2855187857047 in words is "two trillion, eight hundred fifty-five billion, one hundred eighty-seven million, eight hundred fifty-seven thousand, forty-seven".