3651444425 has 6 divisors (see below), whose sum is σ = 4527791118. Its totient is φ = 2921155520.

The previous prime is 3651444413. The next prime is 3651444431. The reversal of 3651444425 is 5244441563.

It can be written as a sum of positive squares in 3 ways, for example, as 515108416 + 3136336009 = 22696^2 + 56003^2 .

It is not a de Polignac number, because 3651444425 - 2¹² = 3651440329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 73028864 + ... + 73028913.

It is an arithmetic number, because the mean of its divisors is an integer number (754631853).

Almost surely, 2^3651444425 is an apocalyptic number.

It is an amenable number.

3651444425 is a deficient number, since it is larger than the sum of its proper divisors (876346693).

3651444425 is a wasteful number, since it uses less digits than its factorization.

3651444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146057787 (or 146057782 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 3651444425 is about 60427.1828319011. The cubic root of 3651444425 is about 1539.8847984044.

Adding to 3651444425 its reverse (5244441563), we get a palindrome (8895885988).

The spelling of 3651444425 in words is "three billion, six hundred fifty-one million, four hundred forty-four thousand, four hundred twenty-five".