82565338007 has 4 divisors (see below), whose sum is σ = 82569201000. Its totient is φ = 82561475016.

The previous prime is 82565337989. The next prime is 82565338039. The reversal of 82565338007 is 70083356528.

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

It is a cyclic number.

It is not a de Polignac number, because 82565338007 - 2¹⁰ = 82565336983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82565338057) 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, 1899257 + ... + 1942242.

It is an arithmetic number, because the mean of its divisors is an integer number (20642300250).

Almost surely, 2^82565338007 is an apocalyptic number.

82565338007 is a deficient number, since it is larger than the sum of its proper divisors (3862993).

82565338007 is a wasteful number, since it uses less digits than its factorization.

82565338007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862992.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 82565338007 in words is "eighty-two billion, five hundred sixty-five million, three hundred thirty-eight thousand, seven".