1681025712 has 40 divisors (see below), whose sum is σ = 4407473856. Its totient is φ = 551977536.

The previous prime is 1681025669. The next prime is 1681025729. The reversal of 1681025712 is 2175201861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258138 + ... + 264569.

Almost surely, 2^1681025712 is an apocalyptic number.

1681025712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1681025712 is an abundant number, since it is smaller than the sum of its proper divisors (2726448144).

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

1681025712 is a wasteful number, since it uses less digits than its factorization.

1681025712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522785 (or 522779 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 1681025712 is about 41000.3135597766. The cubic root of 1681025712 is about 1189.0262759383.

The spelling of 1681025712 in words is "one billion, six hundred eighty-one million, twenty-five thousand, seven hundred twelve".