82610710081 has 4 divisors (see below), whose sum is σ = 82631423700. Its totient is φ = 82589996464.

The previous prime is 82610710073. The next prime is 82610710097. The reversal of 82610710081 is 18001701628.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42363930625 + 40246779456 = 205825^2 + 200616^2 .

It is a cyclic number.

It is not a de Polignac number, because 82610710081 - 2³ = 82610710073 is a prime.

It is a super-2 number, since 2×82610710081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82610710051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10350826 + ... + 10358803.

It is an arithmetic number, because the mean of its divisors is an integer number (20657855925).

Almost surely, 2^82610710081 is an apocalyptic number.

It is an amenable number.

82610710081 is a deficient number, since it is larger than the sum of its proper divisors (20713619).

82610710081 is a wasteful number, since it uses less digits than its factorization.

82610710081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20713618.

The product of its (nonzero) digits is 5376, while the sum is 34.

The spelling of 82610710081 in words is "eighty-two billion, six hundred ten million, seven hundred ten thousand, eighty-one".