243674451543 has 8 divisors (see below), whose sum is σ = 327879996400. Its totient is φ = 160959270528.

The previous prime is 243674451511. The next prime is 243674451551. The reversal of 243674451543 is 345154476342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243674451543 - 2⁵ = 243674451511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243674451492 and 243674451501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243674451343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372590578 + ... + 372591231.

It is an arithmetic number, because the mean of its divisors is an integer number (40984999550).

Almost surely, 2^243674451543 is an apocalyptic number.

243674451543 is a deficient number, since it is larger than the sum of its proper divisors (84205544857).

243674451543 is a wasteful number, since it uses less digits than its factorization.

243674451543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745181921.

The product of its digits is 4838400, while the sum is 48.

The spelling of 243674451543 in words is "two hundred forty-three billion, six hundred seventy-four million, four hundred fifty-one thousand, five hundred forty-three".