3874138648 has 16 divisors (see below), whose sum is σ = 7268710680. Its totient is φ = 1935815808.

The previous prime is 3874138559. The next prime is 3874138649. The reversal of 3874138648 is 8468314783.

3874138648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3874138595 and 3874138604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874138649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143490 + ... + 168337.

Almost surely, 2^3874138648 is an apocalyptic number.

It is an amenable number.

3874138648 is a deficient number, since it is larger than the sum of its proper divisors (3394572032).

3874138648 is a wasteful number, since it uses less digits than its factorization.

3874138648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313386 (or 313382 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The square root of 3874138648 is about 62242.5790596759. The cubic root of 3874138648 is about 1570.5739375927.

The spelling of 3874138648 in words is "three billion, eight hundred seventy-four million, one hundred thirty-eight thousand, six hundred forty-eight".