82128308033 has 2 divisors, whose sum is σ = 82128308034. Its totient is φ = 82128308032.

The previous prime is 82128308027. The next prime is 82128308047. The reversal of 82128308033 is 33080382128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81311663104 + 816644929 = 285152^2 + 28577^2 .

It is a cyclic number.

It is not a de Polignac number, because 82128308033 - 2²⁶ = 82061199169 is a prime.

It is not a weakly prime, because it can be changed into another prime (82128308083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41064154016 + 41064154017.

It is an arithmetic number, because the mean of its divisors is an integer number (41064154017).

Almost surely, 2^82128308033 is an apocalyptic number.

It is an amenable number.

82128308033 is a deficient number, since it is larger than the sum of its proper divisors (1).

82128308033 is an equidigital number, since it uses as much as digits as its factorization.

82128308033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 82128308033 in words is "eighty-two billion, one hundred twenty-eight million, three hundred eight thousand, thirty-three".