681853367246 has 8 divisors (see below), whose sum is σ = 1029294573960. Its totient is φ = 338755175928.

The previous prime is 681853367231. The next prime is 681853367309. The reversal of 681853367246 is 642763358186.

681853367246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 1085753456 + ... + 1085754083.

It is an arithmetic number, because the mean of its divisors is an integer number (128661821745).

Almost surely, 2^681853367246 is an apocalyptic number.

681853367246 is a deficient number, since it is larger than the sum of its proper divisors (347441206714).

681853367246 is a wasteful number, since it uses less digits than its factorization.

681853367246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171507698.

The product of its digits is 34836480, while the sum is 59.

The spelling of 681853367246 in words is "six hundred eighty-one billion, eight hundred fifty-three million, three hundred sixty-seven thousand, two hundred forty-six".