83143590782856 has 256 divisors, whose sum is σ = 221927886028800. Its totient is φ = 25915070342400.

The previous prime is 83143590782839. The next prime is 83143590782929. The reversal of 83143590782856 is 65828709534138.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4385432305 + ... + 4385451263.

It is an arithmetic number, because the mean of its divisors is an integer number (866905804800).

It is a 1-persistent number, because it is pandigital, but 2⋅83143590782856 = 166287181565712 is not.

Almost surely, 2^{83143590782856} 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 83143590782856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110963943014400).

83143590782856 is an abundant number, since it is smaller than the sum of its proper divisors (138784295245944).

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

83143590782856 is a wasteful number, since it uses less digits than its factorization.

83143590782856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640 (or 20636 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 69.

The spelling of 83143590782856 in words is "eighty-three trillion, one hundred forty-three billion, five hundred ninety million, seven hundred eighty-two thousand, eight hundred fifty-six".