681787241596 has 12 divisors (see below), whose sum is σ = 1197373680720. Its totient is φ = 339680475680.

The previous prime is 681787241591. The next prime is 681787241617. The reversal of 681787241596 is 695142787186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681787241591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303285016 + ... + 303287263.

It is an arithmetic number, because the mean of its divisors is an integer number (99781140060).

Almost surely, 2^681787241596 is an apocalyptic number.

It is an amenable number.

681787241596 is a deficient number, since it is larger than the sum of its proper divisors (515586439124).

681787241596 is a wasteful number, since it uses less digits than its factorization.

681787241596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606572564 (or 606572562 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 64.

The spelling of 681787241596 in words is "six hundred eighty-one billion, seven hundred eighty-seven million, two hundred forty-one thousand, five hundred ninety-six".