68947952756 has 12 divisors (see below), whose sum is σ = 120671124420. Its totient is φ = 34470488640.

The previous prime is 68947952753. The next prime is 68947952783. The reversal of 68947952756 is 65725974986.

It can be written as a sum of positive squares in 2 ways, for example, as 5287616656 + 63660336100 = 72716^2 + 252310^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68947952753) 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, 827201 + ... + 906728.

It is an arithmetic number, because the mean of its divisors is an integer number (10055927035).

Almost surely, 2^68947952756 is an apocalyptic number.

It is an amenable number.

68947952756 is a deficient number, since it is larger than the sum of its proper divisors (51723171664).

68947952756 is a wasteful number, since it uses less digits than its factorization.

68947952756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743874 (or 1743872 counting only the distinct ones).

The product of its digits is 228614400, while the sum is 68.

The spelling of 68947952756 in words is "sixty-eight billion, nine hundred forty-seven million, nine hundred fifty-two thousand, seven hundred fifty-six".