3872218368 has 72 divisors (see below), whose sum is σ = 10459703968. Its totient is φ = 1271457792.

The previous prime is 3872218349. The next prime is 3872218381. The reversal of 3872218368 is 8638122783.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13830 + ... + 89082.

Almost surely, 2^3872218368 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 3872218368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5229851984).

3872218368 is an abundant number, since it is smaller than the sum of its proper divisors (6587485600).

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

3872218368 is an equidigital number, since it uses as much as digits as its factorization.

3872218368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75339 (or 75325 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 3872218368 is about 62227.1513730140. The cubic root of 3872218368 is about 1570.3144011785.

The spelling of 3872218368 in words is "three billion, eight hundred seventy-two million, two hundred eighteen thousand, three hundred sixty-eight".