83538755856 has 180 divisors, whose sum is σ = 254709411840. Its totient is φ = 25529178240.

The previous prime is 83538755851. The next prime is 83538755863. The reversal of 83538755856 is 65855783538.

It is a junction number, because it is equal to n+sod(n) for n = 83538755793 and 83538755802.

It is not an unprimeable number, because it can be changed into a prime (83538755851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1585585 + ... + 1637423.

It is an arithmetic number, because the mean of its divisors is an integer number (1415052288).

Almost surely, 2^83538755856 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 83538755856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127354705920).

83538755856 is an abundant number, since it is smaller than the sum of its proper divisors (171170655984).

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

83538755856 is a wasteful number, since it uses less digits than its factorization.

83538755856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51922 (or 51894 counting only the distinct ones).

The product of its digits is 120960000, while the sum is 63.

The spelling of 83538755856 in words is "eighty-three billion, five hundred thirty-eight million, seven hundred fifty-five thousand, eight hundred fifty-six".