68373440756 has 12 divisors (see below), whose sum is σ = 119834544900. Its totient is φ = 34134999360.

The previous prime is 68373440749. The next prime is 68373440809. The reversal of 68373440756 is 65704437386.

It can be written as a sum of positive squares in 2 ways, for example, as 37513491856 + 30859948900 = 193684^2 + 175670^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68373440698 and 68373440707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12927281 + ... + 12932568.

It is an arithmetic number, because the mean of its divisors is an integer number (9986212075).

Almost surely, 2^68373440756 is an apocalyptic number.

It is an amenable number.

68373440756 is a deficient number, since it is larger than the sum of its proper divisors (51461104144).

68373440756 is a wasteful number, since it uses less digits than its factorization.

68373440756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25860514 (or 25860512 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 68373440756 in words is "sixty-eight billion, three hundred seventy-three million, four hundred forty thousand, seven hundred fifty-six".