243927555445 has 16 divisors (see below), whose sum is σ = 334893277440. Its totient is φ = 167082580224.

The previous prime is 243927555437. The next prime is 243927555481. The reversal of 243927555445 is 544555729342.

It is not a de Polignac number, because 243927555445 - 2³ = 243927555437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3759652 + ... + 3823981.

It is an arithmetic number, because the mean of its divisors is an integer number (20930829840).

Almost surely, 2^243927555445 is an apocalyptic number.

It is an amenable number.

243927555445 is a deficient number, since it is larger than the sum of its proper divisors (90965721995).

243927555445 is an equidigital number, since it uses as much as digits as its factorization.

243927555445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584564.

The product of its digits is 30240000, while the sum is 55.

The spelling of 243927555445 in words is "two hundred forty-three billion, nine hundred twenty-seven million, five hundred fifty-five thousand, four hundred forty-five".