688315466742 has 16 divisors (see below), whose sum is σ = 1376801849280. Its totient is φ = 229410002952.

The previous prime is 688315466701. The next prime is 688315466749. The reversal of 688315466742 is 247664513886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688315466749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7069108 + ... + 7165815.

It is an arithmetic number, because the mean of its divisors is an integer number (86050115580).

Almost surely, 2^688315466742 is an apocalyptic number.

688315466742 is an abundant number, since it is smaller than the sum of its proper divisors (688486382538).

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

688315466742 is a wasteful number, since it uses less digits than its factorization.

688315466742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14242987.

The product of its digits is 46448640, while the sum is 60.

The spelling of 688315466742 in words is "six hundred eighty-eight billion, three hundred fifteen million, four hundred sixty-six thousand, seven hundred forty-two".