688126471823 has 32 divisors (see below), whose sum is σ = 796524019200. Its totient is φ = 582306407424.

The previous prime is 688126471817. The next prime is 688126471829. The reversal of 688126471823 is 328174621886.

It is an interprime number because it is at equal distance from previous prime (688126471817) and next prime (688126471829).

It is not a de Polignac number, because 688126471823 - 2⁶ = 688126471759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688126471829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284701511 + ... + 284703927.

It is an arithmetic number, because the mean of its divisors is an integer number (24891375600).

Almost surely, 2^688126471823 is an apocalyptic number.

688126471823 is a deficient number, since it is larger than the sum of its proper divisors (108397547377).

688126471823 is a wasteful number, since it uses less digits than its factorization.

688126471823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its digits is 6193152, while the sum is 56.

The spelling of 688126471823 in words is "six hundred eighty-eight billion, one hundred twenty-six million, four hundred seventy-one thousand, eight hundred twenty-three".