243542040603464 has 16 divisors (see below), whose sum is σ = 456678448609020. Its totient is φ = 121761120974400.

The previous prime is 243542040603431. The next prime is 243542040603467. The reversal of 243542040603464 is 464306040245342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 236187411192100 + 7354629411364 = 15368390^2 + 2711942^2 .

It is a super-3 number, since 3×243542040603464³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (243542040603467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237311359 + ... + 1237508174.

Almost surely, 2^{243542040603464} is an apocalyptic number.

It is an amenable number.

243542040603464 is a deficient number, since it is larger than the sum of its proper divisors (213136408005556).

243542040603464 is a wasteful number, since it uses less digits than its factorization.

243542040603464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474831840 (or 2474831836 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 47.

The spelling of 243542040603464 in words is "two hundred forty-three trillion, five hundred forty-two billion, forty million, six hundred three thousand, four hundred sixty-four".