686483519497 has 4 divisors (see below), whose sum is σ = 686485772800. Its totient is φ = 686481266196.

The previous prime is 686483519399. The next prime is 686483519509. The reversal of 686483519497 is 794915384686.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 686483519497 - 2²³ = 686475130889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686483510497) 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, 581853 + ... + 1308250.

It is an arithmetic number, because the mean of its divisors is an integer number (171621443200).

Almost surely, 2^686483519497 is an apocalyptic number.

It is an amenable number.

686483519497 is a deficient number, since it is larger than the sum of its proper divisors (2253303).

686483519497 is a wasteful number, since it uses less digits than its factorization.

686483519497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253302.

The product of its digits is 313528320, while the sum is 70.

The spelling of 686483519497 in words is "six hundred eighty-six billion, four hundred eighty-three million, five hundred nineteen thousand, four hundred ninety-seven".