68664822804280 has 32 divisors (see below), whose sum is σ = 155296347966000. Its totient is φ = 27323618605056.

The previous prime is 68664822804191. The next prime is 68664822804299. The reversal of 68664822804280 is 8240822846686.

It is a congruent 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, 4447195830 + ... + 4447211269.

Almost surely, 2^{68664822804280} is an apocalyptic number.

It is an amenable number.

68664822804280 is an abundant number, since it is smaller than the sum of its proper divisors (86631525161720).

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

68664822804280 is a wasteful number, since it uses less digits than its factorization.

68664822804280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894407303 (or 8894407299 counting only the distinct ones).

The product of its (nonzero) digits is 113246208, while the sum is 64.

The spelling of 68664822804280 in words is "sixty-eight trillion, six hundred sixty-four billion, eight hundred twenty-two million, eight hundred four thousand, two hundred eighty".