838640841282 has 24 divisors (see below), whose sum is σ = 1817155807740. Its totient is φ = 279531462240.

The previous prime is 838640841239. The next prime is 838640841299. The reversal of 838640841282 is 282148046838.

838640841282 is a `hidden beast` number, since 83 + 86 + 408 + 4 + 1 + 2 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 559834664841 + 278806176441 = 748221^2 + 528021^2 .

It is a super-3 number, since 3×838640841282³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954057 + ... + 1608572.

Almost surely, 2^838640841282 is an apocalyptic number.

838640841282 is an abundant number, since it is smaller than the sum of its proper divisors (978514966458).

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

838640841282 is a wasteful number, since it uses less digits than its factorization.

838640841282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580818 (or 2580815 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 838640841282 in words is "eight hundred thirty-eight billion, six hundred forty million, eight hundred forty-one thousand, two hundred eighty-two".