688289549950 has 12 divisors (see below), whose sum is σ = 1280218563000. Its totient is φ = 275315819960.

The previous prime is 688289549947. The next prime is 688289550001. The reversal of 688289549950 is 59945982886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6882895450 + ... + 6882895549.

It is an arithmetic number, because the mean of its divisors is an integer number (106684880250).

Almost surely, 2^688289549950 is an apocalyptic number.

688289549950 is a deficient number, since it is larger than the sum of its proper divisors (591929013050).

688289549950 is a wasteful number, since it uses less digits than its factorization.

688289549950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765791011 (or 13765791006 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 73.

The spelling of 688289549950 in words is "six hundred eighty-eight billion, two hundred eighty-nine million, five hundred forty-nine thousand, nine hundred fifty".