688679882998 has 8 divisors (see below), whose sum is σ = 1033029222192. Its totient is φ = 344336808936.

The previous prime is 688679882963. The next prime is 688679883011. The reversal of 688679882998 is 899288976886.

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

It is a super-2 number, since 2×688679882998² (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 3 ways as a sum of consecutive naturals, for example, 1281090 + ... + 1737397.

It is an arithmetic number, because the mean of its divisors is an integer number (129128652774).

Almost surely, 2^688679882998 is an apocalyptic number.

688679882998 is a deficient number, since it is larger than the sum of its proper divisors (344349339194).

688679882998 is a wasteful number, since it uses less digits than its factorization.

688679882998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132566.

The product of its digits is 12039487488, while the sum is 88.

The spelling of 688679882998 in words is "six hundred eighty-eight billion, six hundred seventy-nine million, eight hundred eighty-two thousand, nine hundred ninety-eight".