3721872218 has 8 divisors (see below), whose sum is σ = 5583934848. Its totient is φ = 1860560604.

The previous prime is 3721872197. The next prime is 3721872227. The reversal of 3721872218 is 8122781273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175196 + ... + 195287.

It is an arithmetic number, because the mean of its divisors is an integer number (697991856).

Almost surely, 2^3721872218 is an apocalyptic number.

3721872218 is a deficient number, since it is larger than the sum of its proper divisors (1862062630).

3721872218 is a wasteful number, since it uses less digits than its factorization.

3721872218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375508.

The product of its digits is 75264, while the sum is 41.

The square root of 3721872218 is about 61007.1489089598. The cubic root of 3721872218 is about 1549.7220754556.

The spelling of 3721872218 in words is "three billion, seven hundred twenty-one million, eight hundred seventy-two thousand, two hundred eighteen".