68320372612 has 12 divisors (see below), whose sum is σ = 119915433820. Its totient is φ = 34058820096.

The previous prime is 68320372607. The next prime is 68320372619. The reversal of 68320372612 is 21627302386.

68320372612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36287964036 + 32032408576 = 190494^2 + 178976^2 .

It is not an unprimeable number, because it can be changed into a prime (68320372619) 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, 25340037 + ... + 25342732.

Almost surely, 2^68320372612 is an apocalyptic number.

It is an amenable number.

68320372612 is a deficient number, since it is larger than the sum of its proper divisors (51595061208).

68320372612 is a wasteful number, since it uses less digits than its factorization.

68320372612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50683110 (or 50683108 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

Adding to 68320372612 its reverse (21627302386), we get a palindrome (89947674998).

The spelling of 68320372612 in words is "sixty-eight billion, three hundred twenty million, three hundred seventy-two thousand, six hundred twelve".