4186855816 has 64 divisors (see below), whose sum is σ = 9279789120. Its totient is φ = 1745867520.

The previous prime is 4186855793. The next prime is 4186855861. The reversal of 4186855816 is 6185586814.

4186855816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175246 + ... + 197698.

It is an arithmetic number, because the mean of its divisors is an integer number (144996705).

Almost surely, 2^4186855816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4186855816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4639894560).

4186855816 is an abundant number, since it is smaller than the sum of its proper divisors (5092933304).

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

4186855816 is a wasteful number, since it uses less digits than its factorization.

4186855816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22646 (or 22642 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 52.

The square root of 4186855816 is about 64705.9179364608. The cubic root of 4186855816 is about 1611.7437758131.

The spelling of 4186855816 in words is "four billion, one hundred eighty-six million, eight hundred fifty-five thousand, eight hundred sixteen".