82575609979 has 2 divisors, whose sum is σ = 82575609980. Its totient is φ = 82575609978.

The previous prime is 82575609971. The next prime is 82575610009. The reversal of 82575609979 is 97990657528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82575609979 - 2³ = 82575609971 is a prime.

It is not a weakly prime, because it can be changed into another prime (82575609971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41287804989 + 41287804990.

It is an arithmetic number, because the mean of its divisors is an integer number (41287804990).

Almost surely, 2^82575609979 is an apocalyptic number.

82575609979 is a deficient number, since it is larger than the sum of its proper divisors (1).

82575609979 is an equidigital number, since it uses as much as digits as its factorization.

82575609979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85730400, while the sum is 67.

The spelling of 82575609979 in words is "eighty-two billion, five hundred seventy-five million, six hundred nine thousand, nine hundred seventy-nine".