681089508000 has 288 divisors, whose sum is σ = 2636932439232. Its totient is φ = 165112512000.

The previous prime is 681089507999. The next prime is 681089508013. The reversal of 681089508000 is 805980186.

681089508000 is a `hidden beast` number, since 68 + 1 + 0 + 89 + 508 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 463962 + ... + 1255961.

It is an arithmetic number, because the mean of its divisors is an integer number (9156015414).

Almost surely, 2^681089508000 is an apocalyptic number.

681089508000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681089508000 is an abundant number, since it is smaller than the sum of its proper divisors (1955842931232).

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

681089508000 is a wasteful number, since it uses less digits than its factorization.

681089508000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719965 (or 1719944 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 681089508000 in words is "six hundred eighty-one billion, eighty-nine million, five hundred eight thousand".