1681058012 has 24 divisors (see below), whose sum is σ = 2957245200. Its totient is φ = 836143616.

The previous prime is 1681057969. The next prime is 1681058021. The reversal of 1681058012 is 2108501861.

It is a self number, because there is not a number n which added to its sum of digits gives 1681058012.

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, 717539 + ... + 719877.

It is an arithmetic number, because the mean of its divisors is an integer number (123218550).

Almost surely, 2^1681058012 is an apocalyptic number.

It is an amenable number.

1681058012 is a deficient number, since it is larger than the sum of its proper divisors (1276187188).

1681058012 is a wasteful number, since it uses less digits than its factorization.

1681058012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 3203 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1681058012 is about 41000.7074573110. The cubic root of 1681058012 is about 1189.0338913885.

Adding to 1681058012 its reverse (2108501861), we get a palindrome (3789559873).

The spelling of 1681058012 in words is "one billion, six hundred eighty-one million, fifty-eight thousand, twelve".