8248842478420 has 12 divisors (see below), whose sum is σ = 17322569204724. Its totient is φ = 3299536991360.

The previous prime is 8248842478379. The next prime is 8248842478447. The reversal of 8248842478420 is 248742488428.

It can be written as a sum of positive squares in 2 ways, for example, as 6465608075536 + 1783234402884 = 2542756^2 + 1335378^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206221061941 + ... + 206221061980.

It is an arithmetic number, because the mean of its divisors is an integer number (1443547433727).

Almost surely, 2^{8248842478420} is an apocalyptic number.

It is an amenable number.

8248842478420 is an abundant number, since it is smaller than the sum of its proper divisors (9073726726304).

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

8248842478420 is a wasteful number, since it uses less digits than its factorization.

8248842478420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412442123930 (or 412442123928 counting only the distinct ones).

The product of its (nonzero) digits is 58720256, while the sum is 61.

The spelling of 8248842478420 in words is "eight trillion, two hundred forty-eight billion, eight hundred forty-two million, four hundred seventy-eight thousand, four hundred twenty".