82782785279 has 12 divisors (see below), whose sum is σ = 86548709544. Its totient is φ = 79137138864.

The previous prime is 82782785269. The next prime is 82782785297. The reversal of 82782785279 is 97258728728.

It is not a de Polignac number, because 82782785279 - 2⁸ = 82782785023 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 (82782785269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340772 + ... + 530745.

It is an arithmetic number, because the mean of its divisors is an integer number (7212392462).

Almost surely, 2^82782785279 is an apocalyptic number.

82782785279 is a deficient number, since it is larger than the sum of its proper divisors (3765924265).

82782785279 is an equidigital number, since it uses as much as digits as its factorization.

82782785279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871654 (or 871607 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 65.

The spelling of 82782785279 in words is "eighty-two billion, seven hundred eighty-two million, seven hundred eighty-five thousand, two hundred seventy-nine".