68315663203 has 4 divisors (see below), whose sum is σ = 69769188000. Its totient is φ = 66862138408.

The previous prime is 68315663173. The next prime is 68315663233. The reversal of 68315663203 is 30236651386.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (68315663173) and next prime (68315663233).

It is a cyclic number.

It is not a de Polignac number, because 68315663203 - 2¹³ = 68315655011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68315663203.

It is not an unprimeable number, because it can be changed into a prime (68315663233) 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, 726762328 + ... + 726762421.

It is an arithmetic number, because the mean of its divisors is an integer number (17442297000).

Almost surely, 2^68315663203 is an apocalyptic number.

68315663203 is a deficient number, since it is larger than the sum of its proper divisors (1453524797).

68315663203 is a wasteful number, since it uses less digits than its factorization.

68315663203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453524796.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 68315663203 in words is "sixty-eight billion, three hundred fifteen million, six hundred sixty-three thousand, two hundred three".