688355228476 has 24 divisors (see below), whose sum is σ = 1276761192336. Its totient is φ = 323606933760.

The previous prime is 688355228437. The next prime is 688355228537. The reversal of 688355228476 is 674822553886.

It is a super-2 number, since 2×688355228476² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 5008870 + ... + 5144461.

It is an arithmetic number, because the mean of its divisors is an integer number (53198383014).

Almost surely, 2^688355228476 is an apocalyptic number.

It is an amenable number.

688355228476 is a deficient number, since it is larger than the sum of its proper divisors (588405963860).

688355228476 is a wasteful number, since it uses less digits than its factorization.

688355228476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154349 (or 10154347 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 64.

The spelling of 688355228476 in words is "six hundred eighty-eight billion, three hundred fifty-five million, two hundred twenty-eight thousand, four hundred seventy-six".