82108245029 has 4 divisors (see below), whose sum is σ = 82116969900. Its totient is φ = 82099520160.

The previous prime is 82108245019. The next prime is 82108245049. The reversal of 82108245029 is 92054280128.

It is a happy number.

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 13607222500 + 68501022529 = 116650^2 + 261727^2 .

It is a cyclic number.

It is not a de Polignac number, because 82108245029 - 2¹² = 82108240933 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 (82108245019) 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, 4348304 + ... + 4367145.

It is an arithmetic number, because the mean of its divisors is an integer number (20529242475).

Almost surely, 2^82108245029 is an apocalyptic number.

It is an amenable number.

82108245029 is a deficient number, since it is larger than the sum of its proper divisors (8724871).

82108245029 is an equidigital number, since it uses as much as digits as its factorization.

82108245029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8724870.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 82108245029 in words is "eighty-two billion, one hundred eight million, two hundred forty-five thousand, twenty-nine".