4243123305546 has 16 divisors (see below), whose sum is σ = 8715604628064. Its totient is φ = 1376148099024.

The previous prime is 4243123305523. The next prime is 4243123305559. The reversal of 4243123305546 is 6455033213424.

It is a super-2 number, since 2×4243123305546² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4243123305498 and 4243123305507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9556583800 + ... + 9556584243.

It is an arithmetic number, because the mean of its divisors is an integer number (544725289254).

Almost surely, 2^{4243123305546} is an apocalyptic number.

4243123305546 is an abundant number, since it is smaller than the sum of its proper divisors (4472481322518).

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

4243123305546 is a wasteful number, since it uses less digits than its factorization.

4243123305546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19113168085.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 4243123305546 in words is "four trillion, two hundred forty-three billion, one hundred twenty-three million, three hundred five thousand, five hundred forty-six".