683786621489 has 8 divisors (see below), whose sum is σ = 692164474560. Its totient is φ = 675442213776.

The previous prime is 683786621473. The next prime is 683786621501. The reversal of 683786621489 is 984126687386.

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

It is a cyclic number.

It is not a de Polignac number, because 683786621489 - 2⁴ = 683786621473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683786621459) 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, 8320199 + ... + 8401980.

It is an arithmetic number, because the mean of its divisors is an integer number (86520559320).

Almost surely, 2^683786621489 is an apocalyptic number.

It is an amenable number.

683786621489 is a deficient number, since it is larger than the sum of its proper divisors (8377853071).

683786621489 is a wasteful number, since it uses less digits than its factorization.

683786621489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722679.

The product of its digits is 167215104, while the sum is 68.

The spelling of 683786621489 in words is "six hundred eighty-three billion, seven hundred eighty-six million, six hundred twenty-one thousand, four hundred eighty-nine".