68812856743 has 8 divisors (see below), whose sum is σ = 70675968960. Its totient is φ = 66949918560.

The previous prime is 68812856731. The next prime is 68812856753. The reversal of 68812856743 is 34765821886.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68812856743 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 (68812856753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376673 + ... + 1425781.

It is an arithmetic number, because the mean of its divisors is an integer number (8834496120).

Almost surely, 2^68812856743 is an apocalyptic number.

68812856743 is a deficient number, since it is larger than the sum of its proper divisors (1863112217).

68812856743 is a wasteful number, since it uses less digits than its factorization.

68812856743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87017.

The product of its digits is 15482880, while the sum is 58.

The spelling of 68812856743 in words is "sixty-eight billion, eight hundred twelve million, eight hundred fifty-six thousand, seven hundred forty-three".