689423275281 has 32 divisors (see below), whose sum is σ = 1041434352000. Its totient is φ = 402687871488.

The previous prime is 689423275237. The next prime is 689423275357. The reversal of 689423275281 is 182572324986.

It is not a de Polignac number, because 689423275281 - 2⁶ = 689423275217 is a prime.

It is a super-2 number, since 2×689423275281² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689423275781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5099116 + ... + 5232573.

It is an arithmetic number, because the mean of its divisors is an integer number (32544823500).

Almost surely, 2^689423275281 is an apocalyptic number.

It is an amenable number.

689423275281 is a deficient number, since it is larger than the sum of its proper divisors (352011076719).

689423275281 is a wasteful number, since it uses less digits than its factorization.

689423275281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331793.

The product of its digits is 11612160, while the sum is 57.

The spelling of 689423275281 in words is "six hundred eighty-nine billion, four hundred twenty-three million, two hundred seventy-five thousand, two hundred eighty-one".