243445262544342 has 16 divisors (see below), whose sum is σ = 540989472320880. Its totient is φ = 81148420848096.

The previous prime is 243445262544317. The next prime is 243445262544347.

243445262544342 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 4 + 5 + 2 + 62 + 544 + 34 + 2 = 666.

243445262544342 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 4508245602673 = 243445262544342 / (2 + 4 + 3 + 4 + 4 + 5 + 2 + 6 + 2 + 5 + 4 + 4 + 3 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243445262544347) 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, 2254122801283 + ... + 2254122801390.

It is an arithmetic number, because the mean of its divisors is an integer number (33811842020055).

Almost surely, 2^{243445262544342} is an apocalyptic number.

243445262544342 is an abundant number, since it is smaller than the sum of its proper divisors (297544209776538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243445262544342 is a wasteful number, since it uses less digits than its factorization.

243445262544342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508245602684 (or 4508245602678 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 54.

The spelling of 243445262544342 in words is "two hundred forty-three trillion, four hundred forty-five billion, two hundred sixty-two million, five hundred forty-four thousand, three hundred forty-two".