68720525330 has 16 divisors (see below), whose sum is σ = 123708409920. Its totient is φ = 27485662512.

The previous prime is 68720525287. The next prime is 68720525347. The reversal of 68720525330 is 3352502786.

It is a Curzon number.

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, 203174 + ... + 422753.

It is an arithmetic number, because the mean of its divisors is an integer number (7731775620).

Almost surely, 2^68720525330 is an apocalyptic number.

68720525330 is a deficient number, since it is larger than the sum of its proper divisors (54987884590).

68720525330 is a wasteful number, since it uses less digits than its factorization.

68720525330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636913.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 68720525330 in words is "sixty-eight billion, seven hundred twenty million, five hundred twenty-five thousand, three hundred thirty".