681480667472 has 40 divisors (see below), whose sum is σ = 1452306516672. Its totient is φ = 309763930080.

The previous prime is 681480667463. The next prime is 681480667501. The reversal of 681480667472 is 274766084186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15978908 + ... + 16021499.

Almost surely, 2^681480667472 is an apocalyptic number.

It is an amenable number.

681480667472 is an abundant number, since it is smaller than the sum of its proper divisors (770825849200).

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

681480667472 is a wasteful number, since it uses less digits than its factorization.

681480667472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32000448 (or 32000420 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 59.

The spelling of 681480667472 in words is "six hundred eighty-one billion, four hundred eighty million, six hundred sixty-seven thousand, four hundred seventy-two".