688326462668 has 48 divisors (see below), whose sum is σ = 1299865991424. Its totient is φ = 317044445760.

The previous prime is 688326462643. The next prime is 688326462679. The reversal of 688326462668 is 866264623886.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54853571 + ... + 54866117.

It is an arithmetic number, because the mean of its divisors is an integer number (27080541488).

Almost surely, 2^688326462668 is an apocalyptic number.

It is an amenable number.

688326462668 is a deficient number, since it is larger than the sum of its proper divisors (611539528756).

688326462668 is a wasteful number, since it uses less digits than its factorization.

688326462668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14622 (or 14620 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 65.

The spelling of 688326462668 in words is "six hundred eighty-eight billion, three hundred twenty-six million, four hundred sixty-two thousand, six hundred sixty-eight".