686330746511 has 8 divisors (see below), whose sum is σ = 722927809920. Its totient is φ = 649781122392.

The previous prime is 686330746487. The next prime is 686330746523. The reversal of 686330746511 is 115647033686.

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 686330746511 - 2¹⁰ = 686330745487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 686330746511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686330746571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830115 + ... + 11887988.

It is an arithmetic number, because the mean of its divisors is an integer number (90365976240).

Almost surely, 2^686330746511 is an apocalyptic number.

686330746511 is a deficient number, since it is larger than the sum of its proper divisors (36597063409).

686330746511 is a wasteful number, since it uses less digits than its factorization.

686330746511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23719645.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 686330746511 in words is "six hundred eighty-six billion, three hundred thirty million, seven hundred forty-six thousand, five hundred eleven".