688486874153 has 4 divisors (see below), whose sum is σ = 741447402948. Its totient is φ = 635526345360.

The previous prime is 688486874143. The next prime is 688486874191. The reversal of 688486874153 is 351478684886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398922349609 + 289564524544 = 631603^2 + 538112^2 .

It is a cyclic number.

It is not a de Polignac number, because 688486874153 - 2¹⁴ = 688486857769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688486874123) 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 3 ways as a sum of consecutive naturals, for example, 26480264378 + ... + 26480264403.

It is an arithmetic number, because the mean of its divisors is an integer number (185361850737).

Almost surely, 2^688486874153 is an apocalyptic number.

It is an amenable number.

688486874153 is a deficient number, since it is larger than the sum of its proper divisors (52960528795).

688486874153 is a wasteful number, since it uses less digits than its factorization.

688486874153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52960528794.

The product of its digits is 247726080, while the sum is 68.

The spelling of 688486874153 in words is "six hundred eighty-eight billion, four hundred eighty-six million, eight hundred seventy-four thousand, one hundred fifty-three".