1683641216454 has 8 divisors (see below), whose sum is σ = 3367282432920. Its totient is φ = 561213738816.

The previous prime is 1683641216449. The next prime is 1683641216503. The reversal of 1683641216454 is 4546121463861.

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

1683641216454 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1683641216397 and 1683641216406.

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, 140303434699 + ... + 140303434710.

It is an arithmetic number, because the mean of its divisors is an integer number (420910304115).

Almost surely, 2^{1683641216454} is an apocalyptic number.

1683641216454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1683641216454 is a wasteful number, since it uses less digits than its factorization.

1683641216454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280606869414.

The product of its digits is 3317760, while the sum is 51.

The spelling of 1683641216454 in words is "one trillion, six hundred eighty-three billion, six hundred forty-one million, two hundred sixteen thousand, four hundred fifty-four".