68006533728620 has 24 divisors (see below), whose sum is σ = 144825181689888. Its totient is φ = 26819478089600.

The previous prime is 68006533728611. The next prime is 68006533728659. The reversal of 68006533728620 is 2682733560086.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23945961161 + ... + 23945964000.

It is an arithmetic number, because the mean of its divisors is an integer number (6034382570412).

Almost surely, 2^{68006533728620} is an apocalyptic number.

It is an amenable number.

68006533728620 is an abundant number, since it is smaller than the sum of its proper divisors (76818647961268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68006533728620 is a wasteful number, since it uses less digits than its factorization.

68006533728620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47891925241 (or 47891925239 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 68006533728620 in words is "sixty-eight trillion, six billion, five hundred thirty-three million, seven hundred twenty-eight thousand, six hundred twenty".