4068697638 has 16 divisors (see below), whose sum is σ = 8141910336. Its totient is φ = 1355480040.

The previous prime is 4068697583. The next prime is 4068697649. The reversal of 4068697638 is 8367968604.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176356 + ... + 198087.

It is an arithmetic number, because the mean of its divisors is an integer number (508869396).

Almost surely, 2^4068697638 is an apocalyptic number.

4068697638 is an abundant number, since it is smaller than the sum of its proper divisors (4073212698).

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

4068697638 is a wasteful number, since it uses less digits than its factorization.

4068697638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376259.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The square root of 4068697638 is about 63786.3436638282. The cubic root of 4068697638 is about 1596.4370768237.

The spelling of 4068697638 in words is "four billion, sixty-eight million, six hundred ninety-seven thousand, six hundred thirty-eight".