68438222396 has 24 divisors (see below), whose sum is σ = 126868175280. Its totient is φ = 32191955712.

The previous prime is 68438222351. The next prime is 68438222429. The reversal of 68438222396 is 69322283486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67490 + ... + 376073.

It is an arithmetic number, because the mean of its divisors is an integer number (5286173970).

Almost surely, 2^68438222396 is an apocalyptic number.

It is an amenable number.

68438222396 is a deficient number, since it is larger than the sum of its proper divisors (58429952884).

68438222396 is a wasteful number, since it uses less digits than its factorization.

68438222396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445853 (or 445851 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 53.

Adding to 68438222396 its sum of digits (53), we get a square (68438222449 = 261607²).

The spelling of 68438222396 in words is "sixty-eight billion, four hundred thirty-eight million, two hundred twenty-two thousand, three hundred ninety-six".