681147274712 has 16 divisors (see below), whose sum is σ = 1279083300000. Its totient is φ = 340058394720.

The previous prime is 681147274681. The next prime is 681147274721. The reversal of 681147274712 is 217472741186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64399712 + ... + 64410287.

It is an arithmetic number, because the mean of its divisors is an integer number (79942706250).

Almost surely, 2^681147274712 is an apocalyptic number.

It is an amenable number.

681147274712 is a deficient number, since it is larger than the sum of its proper divisors (597936025288).

681147274712 is a wasteful number, since it uses less digits than its factorization.

681147274712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128810666 (or 128810662 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 50.

The spelling of 681147274712 in words is "six hundred eighty-one billion, one hundred forty-seven million, two hundred seventy-four thousand, seven hundred twelve".