243634560456 has 32 divisors (see below), whose sum is σ = 696098744640. Its totient is φ = 69609874368.

The previous prime is 243634560443. The next prime is 243634560467. The reversal of 243634560456 is 654065436342.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725102691 + ... + 725103026.

It is an arithmetic number, because the mean of its divisors is an integer number (21753085770).

Almost surely, 2^243634560456 is an apocalyptic number.

It is an amenable number.

243634560456 is an abundant number, since it is smaller than the sum of its proper divisors (452464184184).

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

243634560456 is a wasteful number, since it uses less digits than its factorization.

243634560456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450205733 (or 1450205729 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 48.

Adding to 243634560456 its reverse (654065436342), we get a palindrome (897699996798).

The spelling of 243634560456 in words is "two hundred forty-three billion, six hundred thirty-four million, five hundred sixty thousand, four hundred fifty-six".