82424430475842 has 256 divisors, whose sum is σ = 213401114099712. Its totient is φ = 20627956039680.

The previous prime is 82424430475841. The next prime is 82424430475897. The reversal of 82424430475842 is 24857403442428.

It is a super-2 number, since 2×82424430475842² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82424430475841) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 795911938 + ... + 796015490.

It is an arithmetic number, because the mean of its divisors is an integer number (833598101952).

Almost surely, 2^{82424430475842} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82424430475842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106700557049856).

82424430475842 is an abundant number, since it is smaller than the sum of its proper divisors (130976683623870).

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

82424430475842 is a wasteful number, since it uses less digits than its factorization.

82424430475842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104105.

The product of its (nonzero) digits is 55050240, while the sum is 57.

The spelling of 82424430475842 in words is "eighty-two trillion, four hundred twenty-four billion, four hundred thirty million, four hundred seventy-five thousand, eight hundred forty-two".