2855619844 has 81 divisors (see below), whose sum is σ = 6408211719. Its totient is φ = 1109372880.

The previous prime is 2855619841. The next prime is 2855619847. The reversal of 2855619844 is 4489165582.

The square root of 2855619844 is 53438.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (2855619841) and next prime (2855619847).

It is a junction number, because it is equal to n+sod(n) for n = 2855619791 and 2855619800.

It is not an unprimeable number, because it can be changed into a prime (2855619841) 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 in 26 ways as a sum of consecutive naturals, for example, 8229279 + ... + 8229625.

Almost surely, 2^2855619844 is an apocalyptic number.

2855619844 is the 53438-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855619844

2855619844 is an abundant number, since it is smaller than the sum of its proper divisors (3552591875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2855619844 is a wasteful number, since it uses less digits than its factorization.

2855619844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 367 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The cubic root of 2855619844 is about 1418.7312352787.

It can be divided in two parts, 28556 and 19844, that added together give a square (48400 = 220²).

The spelling of 2855619844 in words is "two billion, eight hundred fifty-five million, six hundred nineteen thousand, eight hundred forty-four".