68681273063 has 4 divisors (see below), whose sum is σ = 73964447928. Its totient is φ = 63398098200.

The previous prime is 68681273053. The next prime is 68681273071. The reversal of 68681273063 is 36037218686.

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

It is a cyclic number.

It is not a de Polignac number, because 68681273063 - 2⁶ = 68681272999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68681273053) 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, 2641587413 + ... + 2641587438.

It is an arithmetic number, because the mean of its divisors is an integer number (18491111982).

Almost surely, 2^68681273063 is an apocalyptic number.

68681273063 is a deficient number, since it is larger than the sum of its proper divisors (5283174865).

68681273063 is a wasteful number, since it uses less digits than its factorization.

68681273063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283174864.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 68681273063 in words is "sixty-eight billion, six hundred eighty-one million, two hundred seventy-three thousand, sixty-three".