3671989648 has 10 divisors (see below), whose sum is σ = 7114479974. Its totient is φ = 1835994816.

The previous prime is 3671989639. The next prime is 3671989669. The reversal of 3671989648 is 8469891763.

It can be written as a sum of positive squares in only one way, i.e., 3652026624 + 19963024 = 60432^2 + 4468^2 .

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 as a sum of consecutive naturals, namely, 114749661 + ... + 114749692.

Almost surely, 2^3671989648 is an apocalyptic number.

It is an amenable number.

3671989648 is a deficient number, since it is larger than the sum of its proper divisors (3442490326).

3671989648 is a wasteful number, since it uses less digits than its factorization.

3671989648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229499361 (or 229499355 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 61.

The square root of 3671989648 is about 60596.9442133842. The cubic root of 3671989648 is about 1542.7675046165.

The spelling of 3671989648 in words is "three billion, six hundred seventy-one million, nine hundred eighty-nine thousand, six hundred forty-eight".