3627218772 has 48 divisors (see below), whose sum is σ = 9812772480. Its totient is φ = 1156503744.

The previous prime is 3627218747. The next prime is 3627218779. The reversal of 3627218772 is 2778127263.

3627218772 is a `hidden beast` number, since 3 + 627 + 2 + 18 + 7 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3627218779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727633 + ... + 732600.

It is an arithmetic number, because the mean of its divisors is an integer number (204432760).

Almost surely, 2^3627218772 is an apocalyptic number.

It is an amenable number.

3627218772 is an abundant number, since it is smaller than the sum of its proper divisors (6185553708).

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

3627218772 is a wasteful number, since it uses less digits than its factorization.

3627218772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460269 (or 1460261 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 3627218772 is about 60226.3959738585. The cubic root of 3627218772 is about 1536.4717636581.

The spelling of 3627218772 in words is "three billion, six hundred twenty-seven million, two hundred eighteen thousand, seven hundred seventy-two".