689906845035 has 12 divisors (see below), whose sum is σ = 1195838531472. Its totient is φ = 367950317328.

The previous prime is 689906844947. The next prime is 689906845057. The reversal of 689906845035 is 530548609986.

689906845035 is a `hidden beast` number, since 6 + 8 + 9 + 90 + 68 + 450 + 35 = 666.

It is not a de Polignac number, because 689906845035 - 2¹⁴ = 689906828651 is a prime.

It is a super-2 number, since 2×689906845035² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7665631567 + ... + 7665631656.

It is an arithmetic number, because the mean of its divisors is an integer number (99653210956).

Almost surely, 2^689906845035 is an apocalyptic number.

689906845035 is a deficient number, since it is larger than the sum of its proper divisors (505931686437).

689906845035 is a wasteful number, since it uses less digits than its factorization.

689906845035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15331263234 (or 15331263231 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 689906845035 in words is "six hundred eighty-nine billion, nine hundred six million, eight hundred forty-five thousand, thirty-five".