1683641211812 has 36 divisors (see below), whose sum is σ = 3414041761536. Its totient is φ = 711676065600.

The previous prime is 1683641211809. The next prime is 1683641211817. The reversal of 1683641211812 is 2181121463861.

It is a super-2 number, since 2×1683641211812² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1683641211817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5492564 + ... + 5790987.

It is an arithmetic number, because the mean of its divisors is an integer number (94834493376).

Almost surely, 2^{1683641211812} is an apocalyptic number.

It is an amenable number.

1683641211812 is an abundant number, since it is smaller than the sum of its proper divisors (1730400549724).

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

1683641211812 is a wasteful number, since it uses less digits than its factorization.

1683641211812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11283708 (or 11283633 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The spelling of 1683641211812 in words is "one trillion, six hundred eighty-three billion, six hundred forty-one million, two hundred eleven thousand, eight hundred twelve".