82508933569 has 4 divisors (see below), whose sum is σ = 86851509040. Its totient is φ = 78166358100.

The previous prime is 82508933567. The next prime is 82508933579. The reversal of 82508933569 is 96533980528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82508933569 - 2¹ = 82508933567 is a prime.

It is a super-2 number, since 2×82508933569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82508933567) 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, 2171287707 + ... + 2171287744.

It is an arithmetic number, because the mean of its divisors is an integer number (21712877260).

Almost surely, 2^82508933569 is an apocalyptic number.

It is an amenable number.

82508933569 is a deficient number, since it is larger than the sum of its proper divisors (4342575471).

82508933569 is a wasteful number, since it uses less digits than its factorization.

82508933569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342575470.

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 82508933569 in words is "eighty-two billion, five hundred eight million, nine hundred thirty-three thousand, five hundred sixty-nine".