243352450501405 has 24 divisors (see below), whose sum is σ = 343517011103160. Its totient is φ = 164995305108480.

The previous prime is 243352450501399. The next prime is 243352450501411. The reversal of 243352450501405 is 504105054253342.

It is an interprime number because it is at equal distance from previous prime (243352450501399) and next prime (243352450501411).

It can be written as a sum of positive squares in 4 ways, for example, as 3070271423961 + 240282179077444 = 1752219^2 + 15501038^2 .

It is not a de Polignac number, because 243352450501405 - 2¹³ = 243352450493213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5580176556 + ... + 5580220165.

It is an arithmetic number, because the mean of its divisors is an integer number (14313208795965).

Almost surely, 2^{243352450501405} is an apocalyptic number.

It is an amenable number.

243352450501405 is a deficient number, since it is larger than the sum of its proper divisors (100164560601755).

243352450501405 is a wasteful number, since it uses less digits than its factorization.

243352450501405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160396829 (or 11160396822 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 243352450501405 in words is "two hundred forty-three trillion, three hundred fifty-two billion, four hundred fifty million, five hundred one thousand, four hundred five".