689589729275 has 24 divisors (see below), whose sum is σ = 863647294464. Its totient is φ = 546158512800.

The previous prime is 689589729217. The next prime is 689589729313. The reversal of 689589729275 is 572927985986.

It is a happy number.

689589729275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 689589729275 - 2¹⁴ = 689589712891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689589729196 and 689589729205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4043990 + ... + 4211060.

It is an arithmetic number, because the mean of its divisors is an integer number (35985303936).

Almost surely, 2^689589729275 is an apocalyptic number.

689589729275 is a deficient number, since it is larger than the sum of its proper divisors (174057565189).

689589729275 is a wasteful number, since it uses less digits than its factorization.

689589729275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168731 (or 168726 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 77.

The spelling of 689589729275 in words is "six hundred eighty-nine billion, five hundred eighty-nine million, seven hundred twenty-nine thousand, two hundred seventy-five".