243252622505 has 8 divisors (see below), whose sum is σ = 293212131072. Its totient is φ = 193729441968.

The previous prime is 243252622493. The next prime is 243252622523. The reversal of 243252622505 is 505226252342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243252622505 - 2¹⁰ = 243252621481 is a prime.

It is a Duffinian number.

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, 109080779 + ... + 109083008.

It is an arithmetic number, because the mean of its divisors is an integer number (36651516384).

Almost surely, 2^243252622505 is an apocalyptic number.

It is an amenable number.

243252622505 is a deficient number, since it is larger than the sum of its proper divisors (49959508567).

243252622505 is a wasteful number, since it uses less digits than its factorization.

243252622505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218164015.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 243252622505 its reverse (505226252342), we get a palindrome (748478874847).

The spelling of 243252622505 in words is "two hundred forty-three billion, two hundred fifty-two million, six hundred twenty-two thousand, five hundred five".