4067697648 has 80 divisors (see below), whose sum is σ = 12206329856. Its totient is φ = 1143141120.

The previous prime is 4067697577. The next prime is 4067697649. The reversal of 4067697648 is 8467967604.

It is a happy number.

4067697648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4067697649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78736 + ... + 119727.

Almost surely, 2^4067697648 is an apocalyptic number.

4067697648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4067697648 is an abundant number, since it is smaller than the sum of its proper divisors (8138632208).

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

4067697648 is a wasteful number, since it uses less digits than its factorization.

4067697648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198542 (or 198536 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The square root of 4067697648 is about 63778.5045920646. The cubic root of 4067697648 is about 1596.3062772362.

The spelling of 4067697648 in words is "four billion, sixty-seven million, six hundred ninety-seven thousand, six hundred forty-eight".