1681286213 has 8 divisors (see below), whose sum is σ = 1781170560. Its totient is φ = 1581511360.

The previous prime is 1681286183. The next prime is 1681286219. The reversal of 1681286213 is 3126821861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1681286213 - 2¹⁶ = 1681220677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681286219) by changing a digit.

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, 5378 + ... + 58236.

It is an arithmetic number, because the mean of its divisors is an integer number (222646320).

Almost surely, 2^1681286213 is an apocalyptic number.

It is an amenable number.

1681286213 is a deficient number, since it is larger than the sum of its proper divisors (99884347).

1681286213 is a wasteful number, since it uses less digits than its factorization.

1681286213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54747.

The product of its digits is 27648, while the sum is 38.

The square root of 1681286213 is about 41003.4902538796. The cubic root of 1681286213 is about 1189.0876921187.

The spelling of 1681286213 in words is "one billion, six hundred eighty-one million, two hundred eighty-six thousand, two hundred thirteen".