688201382632 has 16 divisors (see below), whose sum is σ = 1290446668260. Its totient is φ = 344082271104.

The previous prime is 688201382587. The next prime is 688201382633. The reversal of 688201382632 is 236283102886.

It can be written as a sum of positive squares in 2 ways, for example, as 646856667076 + 41344715556 = 804274^2 + 203334^2 .

It is a super-2 number, since 2×688201382632² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (688201382633) 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, 2143093 + ... + 2443204.

Almost surely, 2^688201382632 is an apocalyptic number.

It is an amenable number.

688201382632 is a deficient number, since it is larger than the sum of its proper divisors (602245285628).

688201382632 is a wasteful number, since it uses less digits than its factorization.

688201382632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605060 (or 4605056 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 688201382632 in words is "six hundred eighty-eight billion, two hundred one million, three hundred eighty-two thousand, six hundred thirty-two".