82428282427 has 4 divisors (see below), whose sum is σ = 82434778920. Its totient is φ = 82421785936.

The previous prime is 82428282397. The next prime is 82428282467. The reversal of 82428282427 is 72428282428.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82428282427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82428282467) 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, 3229177 + ... + 3254602.

It is an arithmetic number, because the mean of its divisors is an integer number (20608694730).

Almost surely, 2^82428282427 is an apocalyptic number.

82428282427 is a deficient number, since it is larger than the sum of its proper divisors (6496493).

82428282427 is a wasteful number, since it uses less digits than its factorization.

82428282427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496492.

The product of its digits is 1835008, while the sum is 49.

Subtracting from 82428282427 its reverse (72428282428), we obtain a palindrome (9999999999).

The spelling of 82428282427 in words is "eighty-two billion, four hundred twenty-eight million, two hundred eighty-two thousand, four hundred twenty-seven".