1984545227812 has 12 divisors (see below), whose sum is σ = 3969090455680. Its totient is φ = 850519383336.

The previous prime is 1984545227779. The next prime is 1984545227813. The reversal of 1984545227812 is 2187225454891.

1984545227812 is an admirable number.

It is a super-2 number, since 2×1984545227812² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1984545227813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35438307612 + ... + 35438307667.

Almost surely, 2^{1984545227812} is an apocalyptic number.

It is an amenable number.

1984545227812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1984545227812 is a wasteful number, since it uses less digits than its factorization.

1984545227812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70876615290 (or 70876615288 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 58.

The spelling of 1984545227812 in words is "one trillion, nine hundred eighty-four billion, five hundred forty-five million, two hundred twenty-seven thousand, eight hundred twelve".