82184219801 has 2 divisors, whose sum is σ = 82184219802. Its totient is φ = 82184219800.

The previous prime is 82184219791. The next prime is 82184219813. The reversal of 82184219801 is 10891248128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75856176400 + 6328043401 = 275420^2 + 79549^2 .

It is a cyclic number.

It is not a de Polignac number, because 82184219801 - 2⁶ = 82184219737 is a prime.

It is not a weakly prime, because it can be changed into another prime (82184219851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41092109900 + 41092109901.

It is an arithmetic number, because the mean of its divisors is an integer number (41092109901).

Almost surely, 2^82184219801 is an apocalyptic number.

It is an amenable number.

82184219801 is a deficient number, since it is larger than the sum of its proper divisors (1).

82184219801 is an equidigital number, since it uses as much as digits as its factorization.

82184219801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 44.

The spelling of 82184219801 in words is "eighty-two billion, one hundred eighty-four million, two hundred nineteen thousand, eight hundred one".