689303457792 has 156 divisors (see below), whose sum is σ = 2064824630960. Its totient is φ = 229767487488.

The previous prime is 689303457781. The next prime is 689303457827. The reversal of 689303457792 is 297754303986.

689303457792 is a `hidden beast` number, since 6 + 8 + 93 + 0 + 3 + 457 + 7 + 92 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649059 + ... + 1341597.

Almost surely, 2^689303457792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689303457792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032412315480).

689303457792 is an abundant number, since it is smaller than the sum of its proper divisors (1375521173168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689303457792 is an frugal number, since it uses more digits than its factorization.

689303457792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692578 (or 692544 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 63.

The spelling of 689303457792 in words is "six hundred eighty-nine billion, three hundred three million, four hundred fifty-seven thousand, seven hundred ninety-two".