3625845218 has 4 divisors (see below), whose sum is σ = 5438767830. Its totient is φ = 1812922608.

The previous prime is 3625845217. The next prime is 3625845227. The reversal of 3625845218 is 8125485263.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3012143689 + 613701529 = 54883^2 + 24773^2 .

It is not an unprimeable number, because it can be changed into a prime (3625845217) 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 as a sum of consecutive naturals, namely, 906461303 + ... + 906461306.

Almost surely, 2^3625845218 is an apocalyptic number.

3625845218 is a deficient number, since it is larger than the sum of its proper divisors (1812922612).

3625845218 is a wasteful number, since it uses less digits than its factorization.

3625845218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812922611.

The product of its digits is 460800, while the sum is 44.

The square root of 3625845218 is about 60214.9916382955. The cubic root of 3625845218 is about 1536.2777956330.

The spelling of 3625845218 in words is "three billion, six hundred twenty-five million, eight hundred forty-five thousand, two hundred eighteen".