681097041912 has 32 divisors (see below), whose sum is σ = 1945991548800. Its totient is φ = 194599154784.

The previous prime is 681097041847. The next prime is 681097041917. The reversal of 681097041912 is 219140790186.

681097041912 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681097041917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027074362 + ... + 2027074697.

It is an arithmetic number, because the mean of its divisors is an integer number (60812235900).

Almost surely, 2^681097041912 is an apocalyptic number.

It is an amenable number.

681097041912 is an abundant number, since it is smaller than the sum of its proper divisors (1264894506888).

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

681097041912 is a wasteful number, since it uses less digits than its factorization.

681097041912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054149075 (or 4054149071 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 681097041912 in words is "six hundred eighty-one billion, ninety-seven million, forty-one thousand, nine hundred twelve".