681468888 has 16 divisors (see below), whose sum is σ = 1703672280. Its totient is φ = 227156288.

The previous prime is 681468857. The next prime is 681468929. The reversal of 681468888 is 888864186.

It is a happy number.

681468888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×681468888³ (a number of 27 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 14197245 + ... + 14197292.

Almost surely, 2^681468888 is an apocalyptic number.

It is an amenable number.

681468888 is an abundant number, since it is smaller than the sum of its proper divisors (1022203392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681468888 is a wasteful number, since it uses less digits than its factorization.

681468888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28394546 (or 28394542 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 57.

The square root of 681468888 is about 26104.9590691118. The cubic root of 681468888 is about 879.9986604663.

The spelling of 681468888 in words is "six hundred eighty-one million, four hundred sixty-eight thousand, eight hundred eighty-eight".