243772227264 has 28 divisors (see below), whose sum is σ = 644980685144. Its totient is φ = 81257409024.

The previous prime is 243772227233. The next prime is 243772227269. The reversal of 243772227264 is 462722277342.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (243772227269) 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, 634823317 + ... + 634823700.

Almost surely, 2^243772227264 is an apocalyptic number.

243772227264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243772227264 is an abundant number, since it is smaller than the sum of its proper divisors (401208457880).

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

243772227264 is a wasteful number, since it uses less digits than its factorization.

243772227264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269647032 (or 1269647022 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 48.

The spelling of 243772227264 in words is "two hundred forty-three billion, seven hundred seventy-two million, two hundred twenty-seven thousand, two hundred sixty-four".