82799974841 has 2 divisors, whose sum is σ = 82799974842. Its totient is φ = 82799974840.

The previous prime is 82799974823. The next prime is 82799974843. The reversal of 82799974841 is 14847999728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45115459216 + 37684515625 = 212404^2 + 194125^2 .

It is a cyclic number.

It is not a de Polignac number, because 82799974841 - 2¹⁴ = 82799958457 is a prime.

Together with 82799974843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82799974843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41399987420 + 41399987421.

It is an arithmetic number, because the mean of its divisors is an integer number (41399987421).

Almost surely, 2^82799974841 is an apocalyptic number.

It is an amenable number.

82799974841 is a deficient number, since it is larger than the sum of its proper divisors (1).

82799974841 is an equidigital number, since it uses as much as digits as its factorization.

82799974841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 68.

The spelling of 82799974841 in words is "eighty-two billion, seven hundred ninety-nine million, nine hundred seventy-four thousand, eight hundred forty-one".