689589729195 has 16 divisors (see below), whose sum is σ = 1103356680480. Its totient is φ = 367776817664.

The previous prime is 689589729161. The next prime is 689589729217. The reversal of 689589729195 is 591927985986.

It is a cyclic number.

It is not a de Polignac number, because 689589729195 - 2⁹ = 689589728683 is a prime.

It is a super-2 number, since 2×689589729195² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 689589729195.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337077 + ... + 1779593.

It is an arithmetic number, because the mean of its divisors is an integer number (68959792530).

Almost surely, 2^689589729195 is an apocalyptic number.

689589729195 is a deficient number, since it is larger than the sum of its proper divisors (413766951285).

689589729195 is a wasteful number, since it uses less digits than its factorization.

689589729195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546414.

The product of its digits is 881798400, while the sum is 78.

The spelling of 689589729195 in words is "six hundred eighty-nine billion, five hundred eighty-nine million, seven hundred twenty-nine thousand, one hundred ninety-five".