3778318648 has 32 divisors (see below), whose sum is σ = 7646612400. Its totient is φ = 1739881728.

The previous prime is 3778318639. The next prime is 3778318651. The reversal of 3778318648 is 8468138773.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5068 + ... + 87076.

Almost surely, 2^3778318648 is an apocalyptic number.

It is an amenable number.

3778318648 is an abundant number, since it is smaller than the sum of its proper divisors (3868293752).

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

3778318648 is a wasteful number, since it uses less digits than its factorization.

3778318648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82471 (or 82467 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The square root of 3778318648 is about 61468.0294787461. The cubic root of 3778318648 is about 1557.5172330660.

The spelling of 3778318648 in words is "three billion, seven hundred seventy-eight million, three hundred eighteen thousand, six hundred forty-eight".