242870428881 has 6 divisors (see below), whose sum is σ = 350812841730. Its totient is φ = 161913619248.

The previous prime is 242870428819. The next prime is 242870428883. The reversal of 242870428881 is 188824078242.

242870428881 is a `hidden beast` number, since 2 + 4 + 287 + 0 + 4 + 288 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 170907001281 + 71963427600 = 413409^2 + 268260^2 .

It is not a de Polignac number, because 242870428881 - 2⁹ = 242870428369 is a prime.

It is a super-2 number, since 2×242870428881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242870428883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13492801596 + ... + 13492801613.

It is an arithmetic number, because the mean of its divisors is an integer number (58468806955).

Almost surely, 2^242870428881 is an apocalyptic number.

It is an amenable number.

242870428881 is a deficient number, since it is larger than the sum of its proper divisors (107942412849).

242870428881 is a wasteful number, since it uses less digits than its factorization.

242870428881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26985603215 (or 26985603212 counting only the distinct ones).

The product of its (nonzero) digits is 3670016, while the sum is 54.

The spelling of 242870428881 in words is "two hundred forty-two billion, eight hundred seventy million, four hundred twenty-eight thousand, eight hundred eighty-one".