688061288364 has 24 divisors (see below), whose sum is σ = 1607586053808. Its totient is φ = 229052375040.

The previous prime is 688061288333. The next prime is 688061288371. The reversal of 688061288364 is 463882160886.

It is a junction number, because it is equal to n+sod(n) for n = 688061288298 and 688061288307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37663957 + ... + 37682220.

It is an arithmetic number, because the mean of its divisors is an integer number (66982752242).

Almost surely, 2^688061288364 is an apocalyptic number.

It is an amenable number.

688061288364 is an abundant number, since it is smaller than the sum of its proper divisors (919524765444).

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

688061288364 is a wasteful number, since it uses less digits than its factorization.

688061288364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75346945 (or 75346943 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 60.

The spelling of 688061288364 in words is "six hundred eighty-eight billion, sixty-one million, two hundred eighty-eight thousand, three hundred sixty-four".