242863943859 has 24 divisors (see below), whose sum is σ = 352374572160. Its totient is φ = 161184435072.

The previous prime is 242863943849. The next prime is 242863943863. The reversal of 242863943859 is 958349368242.

It is a happy number.

242863943859 is a `hidden beast` number, since 2 + 42 + 86 + 39 + 438 + 59 = 666.

242863943859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242863943859 - 2²⁴ = 242847166643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242863943796 and 242863943805.

It is not an unprimeable number, because it can be changed into a prime (242863943849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21935377 + ... + 21946445.

It is an arithmetic number, because the mean of its divisors is an integer number (14682273840).

Almost surely, 2^242863943859 is an apocalyptic number.

242863943859 is a deficient number, since it is larger than the sum of its proper divisors (109510628301).

242863943859 is a wasteful number, since it uses less digits than its factorization.

242863943859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21771 (or 21768 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 242863943859 in words is "two hundred forty-two billion, eight hundred sixty-three million, nine hundred forty-three thousand, eight hundred fifty-nine".