243880201767264 has 48 divisors (see below), whose sum is σ = 640550724336432. Its totient is φ = 81247026659328.

The previous prime is 243880201767263. The next prime is 243880201767271. The reversal of 243880201767264 is 462767102088342.

243880201767264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 243880201767198 and 243880201767207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243880201767263) 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, 724423489 + ... + 724760064.

It is an arithmetic number, because the mean of its divisors is an integer number (13344806757009).

Almost surely, 2^{243880201767264} is an apocalyptic number.

243880201767264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243880201767264 is an abundant number, since it is smaller than the sum of its proper divisors (396670522569168).

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

243880201767264 is a wasteful number, since it uses less digits than its factorization.

243880201767264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449185319 (or 1449185311 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 60.

The spelling of 243880201767264 in words is "two hundred forty-three trillion, eight hundred eighty billion, two hundred one million, seven hundred sixty-seven thousand, two hundred sixty-four".