2855934861 has 16 divisors (see below), whose sum is σ = 4233116160. Its totient is φ = 1700804160.

The previous prime is 2855934857. The next prime is 2855934871. The reversal of 2855934861 is 1684395582.

2855934861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2855934861 - 2² = 2855934857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855934841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179906 + ... + 1182323.

It is an arithmetic number, because the mean of its divisors is an integer number (264569760).

Almost surely, 2^2855934861 is an apocalyptic number.

It is an amenable number.

2855934861 is a deficient number, since it is larger than the sum of its proper divisors (1377181299).

2855934861 is a wasteful number, since it uses less digits than its factorization.

2855934861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362276.

The product of its digits is 2073600, while the sum is 51.

The square root of 2855934861 is about 53440.9474186227. The cubic root of 2855934861 is about 1418.7834023562.

The spelling of 2855934861 in words is "two billion, eight hundred fifty-five million, nine hundred thirty-four thousand, eight hundred sixty-one".