686110500601 has 4 divisors (see below), whose sum is σ = 722221579600. Its totient is φ = 649999421604.

The previous prime is 686110500599. The next prime is 686110500617. The reversal of 686110500601 is 106005011686.

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 686110500601 - 2¹ = 686110500599 is a prime.

It is a super-2 number, since 2×686110500601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686110500671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18055539471 + ... + 18055539508.

It is an arithmetic number, because the mean of its divisors is an integer number (180555394900).

Almost surely, 2^686110500601 is an apocalyptic number.

It is an amenable number.

686110500601 is a deficient number, since it is larger than the sum of its proper divisors (36111078999).

686110500601 is a wasteful number, since it uses less digits than its factorization.

686110500601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36111078998.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 686110500601 in words is "six hundred eighty-six billion, one hundred ten million, five hundred thousand, six hundred one".