681652844086600 has 48 divisors (see below), whose sum is σ = 1588097160187200. Its totient is φ = 272101258463040.

The previous prime is 681652844086559. The next prime is 681652844086661. The reversal of 681652844086600 is 6680448256186.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3499147180 + ... + 3499341979.

It is an arithmetic number, because the mean of its divisors is an integer number (33085357503900).

Almost surely, 2^{681652844086600} is an apocalyptic number.

It is an amenable number.

681652844086600 is an abundant number, since it is smaller than the sum of its proper divisors (906444316100600).

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

681652844086600 is a wasteful number, since it uses less digits than its factorization.

681652844086600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998489662 (or 6998489653 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 64.

The spelling of 681652844086600 in words is "six hundred eighty-one trillion, six hundred fifty-two billion, eight hundred forty-four million, eighty-six thousand, six hundred".