822540158716428 has 144 divisors (see below), whose sum is σ = 2138176850925024. Its totient is φ = 266422140610560.

The previous prime is 822540158716379. The next prime is 822540158716481. The reversal of 822540158716428 is 824617851045228.

822540158716428 is a `hidden beast` number, since 8 + 2 + 2 + 5 + 4 + 0 + 1 + 587 + 1 + 6 + 42 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7365953451 + ... + 7366065117.

It is an arithmetic number, because the mean of its divisors is an integer number (14848450353646).

Almost surely, 2^{822540158716428} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822540158716428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069088425462512).

822540158716428 is an abundant number, since it is smaller than the sum of its proper divisors (1315636692208596).

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

822540158716428 is a wasteful number, since it uses less digits than its factorization.

822540158716428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118872 (or 118867 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 63.

The spelling of 822540158716428 in words is "eight hundred twenty-two trillion, five hundred forty billion, one hundred fifty-eight million, seven hundred sixteen thousand, four hundred twenty-eight".