68703440013 has 48 divisors (see below), whose sum is σ = 114619639680. Its totient is φ = 39298027392.

The previous prime is 68703439999. The next prime is 68703440021. The reversal of 68703440013 is 31004430786.

It is not a de Polignac number, because 68703440013 - 2⁸ = 68703439757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68703440013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68703440213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173745 + ... + 409382.

It is an arithmetic number, because the mean of its divisors is an integer number (2387909160).

Almost surely, 2^68703440013 is an apocalyptic number.

It is an amenable number.

68703440013 is a deficient number, since it is larger than the sum of its proper divisors (45916199667).

68703440013 is a wasteful number, since it uses less digits than its factorization.

68703440013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583218 (or 583215 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 68703440013 its reverse (31004430786), we get a palindrome (99707870799).

The spelling of 68703440013 in words is "sixty-eight billion, seven hundred three million, four hundred forty thousand, thirteen".