82712786727 has 4 divisors (see below), whose sum is σ = 110283715640. Its totient is φ = 55141857816.

The previous prime is 82712786719. The next prime is 82712786743. The reversal of 82712786727 is 72768721728.

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

It is not a de Polignac number, because 82712786727 - 2³ = 82712786719 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 (82712786707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13785464452 + ... + 13785464457.

It is an arithmetic number, because the mean of its divisors is an integer number (27570928910).

Almost surely, 2^82712786727 is an apocalyptic number.

82712786727 is a deficient number, since it is larger than the sum of its proper divisors (27570928913).

82712786727 is a wasteful number, since it uses less digits than its factorization.

82712786727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27570928912.

The product of its digits is 7375872, while the sum is 57.

The spelling of 82712786727 in words is "eighty-two billion, seven hundred twelve million, seven hundred eighty-six thousand, seven hundred twenty-seven".