2861822016 has 105 divisors (see below), whose sum is σ = 8494770031. Its totient is φ = 952656768.

The previous prime is 2861822011. The next prime is 2861822083. The reversal of 2861822016 is 6102281682.

The square root of 2861822016 is 53496.

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

2861822016 is a `hidden beast` number, since 2 + 8 + 618 + 2 + 20 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2861822011) 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 14 ways as a sum of consecutive naturals, for example, 3851341 + ... + 3852083.

Almost surely, 2^2861822016 is an apocalyptic number.

2861822016 is the 53496-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2861822016

2861822016 is an abundant number, since it is smaller than the sum of its proper divisors (5632948015).

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

2861822016 is an frugal number, since it uses more digits than its factorization.

2861822016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The cubic root of 2861822016 is about 1419.7576151785.

Multiplying 2861822016 by its sum of digits (36), we get a square (103025592576 = 320976²).

2861822016 divided by its sum of digits (36) gives a square (79495056 = 8916²).

The spelling of 2861822016 in words is "two billion, eight hundred sixty-one million, eight hundred twenty-two thousand, sixteen".