3722065618 has 8 divisors (see below), whose sum is σ = 5645830140. Its totient is φ = 1840122240.

The previous prime is 3722065603. The next prime is 3722065637. The reversal of 3722065618 is 8165602273.

It can be written as a sum of positive squares in 2 ways, for example, as 2915676009 + 806389609 = 53997^2 + 28397^2 .

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, 10455063 + ... + 10455418.

Almost surely, 2^3722065618 is an apocalyptic number.

3722065618 is a deficient number, since it is larger than the sum of its proper divisors (1923764522).

3722065618 is a wasteful number, since it uses less digits than its factorization.

3722065618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910572.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 3722065618 is about 61008.7339485094. The cubic root of 3722065618 is about 1549.7489177758.

The spelling of 3722065618 in words is "three billion, seven hundred twenty-two million, sixty-five thousand, six hundred eighteen".