68744724743 has 4 divisors (see below), whose sum is σ = 68747306928. Its totient is φ = 68742142560.

The previous prime is 68744724701. The next prime is 68744724749. The reversal of 68744724743 is 34742744786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34742744786 = 2 ⋅17371372393.

It is a cyclic number.

It is not a de Polignac number, because 68744724743 - 2⁸ = 68744724487 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 (68744724749) 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, 1250738 + ... + 1304543.

It is an arithmetic number, because the mean of its divisors is an integer number (17186826732).

Almost surely, 2^68744724743 is an apocalyptic number.

68744724743 is a deficient number, since it is larger than the sum of its proper divisors (2582185).

68744724743 is a wasteful number, since it uses less digits than its factorization.

68744724743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582184.

The product of its digits is 25288704, while the sum is 56.

The spelling of 68744724743 in words is "sixty-eight billion, seven hundred forty-four million, seven hundred twenty-four thousand, seven hundred forty-three".