2855727191 has 8 divisors (see below), whose sum is σ = 2924451840. Its totient is φ = 2787334488.

The previous prime is 2855727181. The next prime is 2855727197. The reversal of 2855727191 is 1917275582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2855727191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855727197) 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 in 7 ways as a sum of consecutive naturals, for example, 65531 + ... + 100028.

It is an arithmetic number, because the mean of its divisors is an integer number (365556480).

Almost surely, 2^2855727191 is an apocalyptic number.

2855727191 is a deficient number, since it is larger than the sum of its proper divisors (68724649).

2855727191 is a wasteful number, since it uses less digits than its factorization.

2855727191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165973.

The product of its digits is 352800, while the sum is 47.

The square root of 2855727191 is about 53439.0043975372. The cubic root of 2855727191 is about 1418.7490124622.

The spelling of 2855727191 in words is "two billion, eight hundred fifty-five million, seven hundred twenty-seven thousand, one hundred ninety-one".