688874027476 has 12 divisors (see below), whose sum is σ = 1205536119508. Its totient is φ = 344435136192.

The previous prime is 688874027473. The next prime is 688874027539. The reversal of 688874027476 is 674720478886.

It can be written as a sum of positive squares in 2 ways, for example, as 463556722500 + 225317304976 = 680850^2 + 474676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688874027473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655870 + ... + 1344586.

Almost surely, 2^688874027476 is an apocalyptic number.

It is an amenable number.

688874027476 is a deficient number, since it is larger than the sum of its proper divisors (516662092032).

688874027476 is a wasteful number, since it uses less digits than its factorization.

688874027476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938778 (or 938776 counting only the distinct ones).

The product of its (nonzero) digits is 202309632, while the sum is 67.

The spelling of 688874027476 in words is "six hundred eighty-eight billion, eight hundred seventy-four million, twenty-seven thousand, four hundred seventy-six".