243650052538 has 8 divisors (see below), whose sum is σ = 365804635860. Its totient is φ = 121715173920.

The previous prime is 243650052533. The next prime is 243650052539. The reversal of 243650052538 is 835250056342.

It can be written as a sum of positive squares in 2 ways, for example, as 237507098409 + 6142954129 = 487347^2 + 78377^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 243650052494 and 243650052503.

It is not an unprimeable number, because it can be changed into a prime (243650052533) 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, 54923403 + ... + 54927838.

Almost surely, 2^243650052538 is an apocalyptic number.

243650052538 is a deficient number, since it is larger than the sum of its proper divisors (122154583322).

243650052538 is a wasteful number, since it uses less digits than its factorization.

243650052538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109852352.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 243650052538 in words is "two hundred forty-three billion, six hundred fifty million, fifty-two thousand, five hundred thirty-eight".