681110004 has 24 divisors (see below), whose sum is σ = 1594279008. Its totient is φ = 226319200.

The previous prime is 681109939. The next prime is 681110033. The reversal of 681110004 is 400011186.

681110004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 85722 + ... + 93329.

It is an arithmetic number, because the mean of its divisors is an integer number (66428292).

Almost surely, 2^681110004 is an apocalyptic number.

It is an amenable number.

681110004 is an abundant number, since it is smaller than the sum of its proper divisors (913169004).

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

681110004 is a wasteful number, since it uses less digits than its factorization.

681110004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179375 (or 179373 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 681110004 is about 26098.0842975112. The cubic root of 681110004 is about 879.8441545644.

It can be divided in two parts, 681 and 110004, that added together give a triangular number (110685 = T₄₇₀).

The spelling of 681110004 in words is "six hundred eighty-one million, one hundred ten thousand, four".