82941726839809 has 4 divisors (see below), whose sum is σ = 82962353983060. Its totient is φ = 82921099696560.

The previous prime is 82941726839761. The next prime is 82941726839827. The reversal of 82941726839809 is 90893862714928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3858003072400 + 79083723767409 = 1964180^2 + 8892903^2 .

It is a cyclic number.

It is not a de Polignac number, because 82941726839809 - 2⁷ = 82941726839681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82941726839899) 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 in 3 ways as a sum of consecutive naturals, for example, 10313565594 + ... + 10313573635.

It is an arithmetic number, because the mean of its divisors is an integer number (20740588495765).

Almost surely, 2^{82941726839809} is an apocalyptic number.

It is an amenable number.

82941726839809 is a deficient number, since it is larger than the sum of its proper divisors (20627143251).

82941726839809 is a wasteful number, since it uses less digits than its factorization.

82941726839809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20627143250.

The product of its (nonzero) digits is 752467968, while the sum is 76.

The spelling of 82941726839809 in words is "eighty-two trillion, nine hundred forty-one billion, seven hundred twenty-six million, eight hundred thirty-nine thousand, eight hundred nine".