68538445786 has 8 divisors (see below), whose sum is σ = 106124045184. Its totient is φ = 33163764060.

The previous prime is 68538445783. The next prime is 68538445793. The reversal of 68538445786 is 68754483586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68538445786² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68538445783) 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, 552729340 + ... + 552729463.

It is an arithmetic number, because the mean of its divisors is an integer number (13265505648).

Almost surely, 2^68538445786 is an apocalyptic number.

68538445786 is a deficient number, since it is larger than the sum of its proper divisors (37585599398).

68538445786 is a wasteful number, since it uses less digits than its factorization.

68538445786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105458836.

The product of its digits is 154828800, while the sum is 64.

The spelling of 68538445786 in words is "sixty-eight billion, five hundred thirty-eight million, four hundred forty-five thousand, seven hundred eighty-six".