689361145523 has 16 divisors (see below), whose sum is σ = 735523965504. Its totient is φ = 643825566720.

The previous prime is 689361145513. The next prime is 689361145541. The reversal of 689361145523 is 325541163986.

It is not a de Polignac number, because 689361145523 - 2¹⁰ = 689361144499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689361145513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6108953 + ... + 6220773.

It is an arithmetic number, because the mean of its divisors is an integer number (45970247844).

Almost surely, 2^689361145523 is an apocalyptic number.

689361145523 is a deficient number, since it is larger than the sum of its proper divisors (46162819981).

689361145523 is a wasteful number, since it uses less digits than its factorization.

689361145523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114622.

The product of its digits is 4665600, while the sum is 53.

The spelling of 689361145523 in words is "six hundred eighty-nine billion, three hundred sixty-one million, one hundred forty-five thousand, five hundred twenty-three".