243156262242 has 16 divisors (see below), whose sum is σ = 503081922240. Its totient is φ = 78257187792.

The previous prime is 243156262201. The next prime is 243156262253. The reversal of 243156262242 is 242262651342.

It is a super-3 number, since 3×243156262242³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243156262242.

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, 698724718 + ... + 698725065.

It is an arithmetic number, because the mean of its divisors is an integer number (31442620140).

Almost surely, 2^243156262242 is an apocalyptic number.

243156262242 is an abundant number, since it is smaller than the sum of its proper divisors (259925659998).

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

243156262242 is a wasteful number, since it uses less digits than its factorization.

243156262242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397449817.

The product of its digits is 276480, while the sum is 39.

The spelling of 243156262242 in words is "two hundred forty-three billion, one hundred fifty-six million, two hundred sixty-two thousand, two hundred forty-two".