681004291932 has 36 divisors (see below), whose sum is σ = 1822687959456. Its totient is φ = 213648405120.

The previous prime is 681004291901. The next prime is 681004291943. The reversal of 681004291932 is 239192400186.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556375444 + ... + 556376667.

It is an arithmetic number, because the mean of its divisors is an integer number (50630221096).

Almost surely, 2^681004291932 is an apocalyptic number.

It is an amenable number.

681004291932 is an abundant number, since it is smaller than the sum of its proper divisors (1141683667524).

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

681004291932 is a wasteful number, since it uses less digits than its factorization.

681004291932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112752138 (or 1112752133 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 681004291932 in words is "six hundred eighty-one billion, four million, two hundred ninety-one thousand, nine hundred thirty-two".