688667795773 has 8 divisors (see below), whose sum is σ = 707295048192. Its totient is φ = 670041312336.

The previous prime is 688667795743. The next prime is 688667795791. The reversal of 688667795773 is 377597766886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 688667795773 - 2⁵ = 688667795741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 688667795693 and 688667795702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688667795713) 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 7 ways as a sum of consecutive naturals, for example, 1938036 + ... + 2265682.

It is an arithmetic number, because the mean of its divisors is an integer number (88411881024).

Almost surely, 2^688667795773 is an apocalyptic number.

It is an amenable number.

688667795773 is a deficient number, since it is larger than the sum of its proper divisors (18627252419).

688667795773 is a wasteful number, since it uses less digits than its factorization.

688667795773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384491.

The product of its digits is 4480842240, while the sum is 79.

The spelling of 688667795773 in words is "six hundred eighty-eight billion, six hundred sixty-seven million, seven hundred ninety-five thousand, seven hundred seventy-three".