243634525436342 has 256 divisors, whose sum is σ = 430645539962880. Its totient is φ = 102654513561600.

The previous prime is 243634525436339. The next prime is 243634525436383.

243634525436342 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76880568134 + ... + 76880571302.

It is an arithmetic number, because the mean of its divisors is an integer number (1682209140480).

Almost surely, 2^{243634525436342} is an apocalyptic number.

243634525436342 is a deficient number, since it is larger than the sum of its proper divisors (187011014526538).

243634525436342 is a wasteful number, since it uses less digits than its factorization.

243634525436342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its digits is 149299200, while the sum is 56.

The spelling of 243634525436342 in words is "two hundred forty-three trillion, six hundred thirty-four billion, five hundred twenty-five million, four hundred thirty-six thousand, three hundred forty-two".