68680566730 has 32 divisors (see below), whose sum is σ = 132264927360. Its totient is φ = 25599654720.

The previous prime is 68680566727. The next prime is 68680566737. The reversal of 68680566730 is 3766508686.

It is not an unprimeable number, because it can be changed into a prime (68680566737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2951334 + ... + 2974513.

It is an arithmetic number, because the mean of its divisors is an integer number (4133278980).

Almost surely, 2^68680566730 is an apocalyptic number.

68680566730 is a deficient number, since it is larger than the sum of its proper divisors (63584360630).

68680566730 is a wasteful number, since it uses less digits than its factorization.

68680566730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925934.

The product of its (nonzero) digits is 8709120, while the sum is 55.

It can be divided in two parts, 6868056 and 6730, that added together give a palindrome (6874786).

The spelling of 68680566730 in words is "sixty-eight billion, six hundred eighty million, five hundred sixty-six thousand, seven hundred thirty".