242839406605266 has 48 divisors (see below), whose sum is σ = 538987687770168. Its totient is φ = 78971774515200.

The previous prime is 242839406605231. The next prime is 242839406605403. The reversal of 242839406605266 is 662506604938242.

It is a happy number.

242839406605266 is a `hidden beast` number, since 2 + 4 + 2 + 8 + 3 + 9 + 40 + 6 + 60 + 526 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 176598185450625 + 66241221154641 = 13289025^2 + 8138871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174123630 + ... + 175512726.

Almost surely, 2^{242839406605266} is an apocalyptic number.

242839406605266 is an abundant number, since it is smaller than the sum of its proper divisors (296148281164902).

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

242839406605266 is a wasteful number, since it uses less digits than its factorization.

242839406605266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626027 (or 1626024 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 63.

The spelling of 242839406605266 in words is "two hundred forty-two trillion, eight hundred thirty-nine billion, four hundred six million, six hundred five thousand, two hundred sixty-six".