243554705445 has 64 divisors (see below), whose sum is σ = 403058073600. Its totient is φ = 125528332800.

The previous prime is 243554705399. The next prime is 243554705467. The reversal of 243554705445 is 544507455342.

It is a happy number.

It is not a de Polignac number, because 243554705445 - 2²³ = 243546316837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243554705394 and 243554705403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16282720 + ... + 16297670.

It is an arithmetic number, because the mean of its divisors is an integer number (6297782400).

Almost surely, 2^243554705445 is an apocalyptic number.

It is an amenable number.

243554705445 is a deficient number, since it is larger than the sum of its proper divisors (159503368155).

243554705445 is a wasteful number, since it uses less digits than its factorization.

243554705445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330.

The product of its (nonzero) digits is 6720000, while the sum is 48.

The spelling of 243554705445 in words is "two hundred forty-three billion, five hundred fifty-four million, seven hundred five thousand, four hundred forty-five".