305717799212 has 12 divisors (see below), whose sum is σ = 611435598480. Its totient is φ = 131021913936.

The previous prime is 305717799193. The next prime is 305717799263. The reversal of 305717799212 is 212997717503.

305717799212 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5459246387 + ... + 5459246442.

It is an arithmetic number, because the mean of its divisors is an integer number (50952966540).

Almost surely, 2^305717799212 is an apocalyptic number.

It is an amenable number.

305717799212 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.

305717799212 is a wasteful number, since it uses less digits than its factorization.

305717799212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918492840 (or 10918492838 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 305717799212 in words is "three hundred five billion, seven hundred seventeen million, seven hundred ninety-nine thousand, two hundred twelve".