686029944495 has 32 divisors (see below), whose sum is σ = 1256270307840. Its totient is φ = 313159800960.

The previous prime is 686029944473. The next prime is 686029944497. The reversal of 686029944495 is 594449920686.

It is not a de Polignac number, because 686029944495 - 2⁵ = 686029944463 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686029944497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4655100 + ... + 4800209.

It is an arithmetic number, because the mean of its divisors is an integer number (39258447120).

Almost surely, 2^686029944495 is an apocalyptic number.

686029944495 is a deficient number, since it is larger than the sum of its proper divisors (570240363345).

686029944495 is a wasteful number, since it uses less digits than its factorization.

686029944495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456015.

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 686029944495 in words is "six hundred eighty-six billion, twenty-nine million, nine hundred forty-four thousand, four hundred ninety-five".