842799247281 has 24 divisors (see below), whose sum is σ = 1235617909344. Its totient is φ = 553448111040.

The previous prime is 842799247249. The next prime is 842799247307. The reversal of 842799247281 is 182742997248.

842799247281 is a `hidden beast` number, since 8 + 4 + 2 + 79 + 92 + 472 + 8 + 1 = 666.

It is not a de Polignac number, because 842799247281 - 2⁵ = 842799247249 is a prime.

It is a super-3 number, since 3×842799247281³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (842799247211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15105646 + ... + 15161336.

It is an arithmetic number, because the mean of its divisors is an integer number (51484079556).

Almost surely, 2^842799247281 is an apocalyptic number.

It is an amenable number.

842799247281 is a deficient number, since it is larger than the sum of its proper divisors (392818662063).

842799247281 is a wasteful number, since it uses less digits than its factorization.

842799247281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80861 (or 80858 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 842799247281 in words is "eight hundred forty-two billion, seven hundred ninety-nine million, two hundred forty-seven thousand, two hundred eighty-one".