689711663848 has 32 divisors (see below), whose sum is σ = 1401124253760. Its totient is φ = 317022048000.

The previous prime is 689711663801. The next prime is 689711663917. The reversal of 689711663848 is 848366117986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58964028 + ... + 58975723.

It is an arithmetic number, because the mean of its divisors is an integer number (43785132930).

Almost surely, 2^689711663848 is an apocalyptic number.

689711663848 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

689711663848 is an abundant number, since it is smaller than the sum of its proper divisors (711412589912).

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

689711663848 is a wasteful number, since it uses less digits than its factorization.

689711663848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117939817 (or 117939813 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 67.

The spelling of 689711663848 in words is "six hundred eighty-nine billion, seven hundred eleven million, six hundred sixty-three thousand, eight hundred forty-eight".