82782785269 has 2 divisors, whose sum is σ = 82782785270. Its totient is φ = 82782785268.

The previous prime is 82782785207. The next prime is 82782785297. The reversal of 82782785269 is 96258728728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63046188100 + 19736597169 = 251090^2 + 140487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82782785269 is a prime.

It is a super-2 number, since 2×82782785269² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82782785269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82782788269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41391392634 + 41391392635.

It is an arithmetic number, because the mean of its divisors is an integer number (41391392635).

Almost surely, 2^82782785269 is an apocalyptic number.

It is an amenable number.

82782785269 is a deficient number, since it is larger than the sum of its proper divisors (1).

82782785269 is an equidigital number, since it uses as much as digits as its factorization.

82782785269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54190080, while the sum is 64.

The spelling of 82782785269 in words is "eighty-two billion, seven hundred eighty-two million, seven hundred eighty-five thousand, two hundred sixty-nine".