82739287813 has 16 divisors (see below), whose sum is σ = 103999633920. Its totient is φ = 64071196416.

The previous prime is 82739287811. The next prime is 82739287817. The reversal of 82739287813 is 31878293728.

It is a cyclic number.

It is not a de Polignac number, because 82739287813 - 2¹ = 82739287811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82739287811) 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 15 ways as a sum of consecutive naturals, for example, 9668308 + ... + 9676861.

It is an arithmetic number, because the mean of its divisors is an integer number (6499977120).

Almost surely, 2^82739287813 is an apocalyptic number.

It is an amenable number.

82739287813 is a deficient number, since it is larger than the sum of its proper divisors (21260346107).

82739287813 is a wasteful number, since it uses less digits than its factorization.

82739287813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19345236.

The product of its digits is 8128512, while the sum is 58.

The spelling of 82739287813 in words is "eighty-two billion, seven hundred thirty-nine million, two hundred eighty-seven thousand, eight hundred thirteen".