683681123548646 has 8 divisors (see below), whose sum is σ = 1025521899906000. Its totient is φ = 341840490246648.

The previous prime is 683681123548597. The next prime is 683681123548649. The reversal of 683681123548646 is 646845321186386.

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

It is a super-2 number, since 2×683681123548646² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 683681123548646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683681123548649) 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, 22889021 + ... + 43488728.

It is an arithmetic number, because the mean of its divisors is an integer number (128190237488250).

Almost surely, 2^{683681123548646} is an apocalyptic number.

683681123548646 is a deficient number, since it is larger than the sum of its proper divisors (341840776357354).

683681123548646 is a wasteful number, since it uses less digits than its factorization.

683681123548646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71527678.

The product of its digits is 955514880, while the sum is 71.

The spelling of 683681123548646 in words is "six hundred eighty-three trillion, six hundred eighty-one billion, one hundred twenty-three million, five hundred forty-eight thousand, six hundred forty-six".