82575609971 has 2 divisors, whose sum is σ = 82575609972. Its totient is φ = 82575609970.

The previous prime is 82575609967. The next prime is 82575609979. The reversal of 82575609971 is 17990657528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82575609971 - 2² = 82575609967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82575609971.

It is not a weakly prime, because it can be changed into another prime (82575609979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41287804985 + 41287804986.

It is an arithmetic number, because the mean of its divisors is an integer number (41287804986).

Almost surely, 2^82575609971 is an apocalyptic number.

82575609971 is a deficient number, since it is larger than the sum of its proper divisors (1).

82575609971 is an equidigital number, since it uses as much as digits as its factorization.

82575609971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 82575609971 in words is "eighty-two billion, five hundred seventy-five million, six hundred nine thousand, nine hundred seventy-one".