683688537679 has 8 divisors (see below), whose sum is σ = 788944332800. Its totient is φ = 580329243576.

The previous prime is 683688537589. The next prime is 683688537683. The reversal of 683688537679 is 976735886386.

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 683688537679 - 2⁷ = 683688537551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683688537079) 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, 474124479 + ... + 474125920.

It is an arithmetic number, because the mean of its divisors is an integer number (98618041600).

Almost surely, 2^683688537679 is an apocalyptic number.

683688537679 is a deficient number, since it is larger than the sum of its proper divisors (105255795121).

683688537679 is a wasteful number, since it uses less digits than its factorization.

683688537679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948250509.

The product of its digits is 2194698240, while the sum is 76.

The spelling of 683688537679 in words is "six hundred eighty-three billion, six hundred eighty-eight million, five hundred thirty-seven thousand, six hundred seventy-nine".