545630405212 has 24 divisors (see below), whose sum is σ = 1008930384000. Its totient is φ = 257473773936.

The previous prime is 545630405189. The next prime is 545630405219. The reversal of 545630405212 is 212504036545.

It is a super-2 number, since 2×545630405212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545630405219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13628962 + ... + 13668937.

It is an arithmetic number, because the mean of its divisors is an integer number (42038766000).

Almost surely, 2^545630405212 is an apocalyptic number.

It is an amenable number.

545630405212 is a deficient number, since it is larger than the sum of its proper divisors (463299978788).

545630405212 is a wasteful number, since it uses less digits than its factorization.

545630405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27298185 (or 27298183 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 545630405212 in words is "five hundred forty-five billion, six hundred thirty million, four hundred five thousand, two hundred twelve".