82500812243 has 4 divisors (see below), whose sum is σ = 82503038808. Its totient is φ = 82498585680.

The previous prime is 82500812239. The next prime is 82500812287. The reversal of 82500812243 is 34221800528.

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

It is a cyclic number.

It is not a de Polignac number, because 82500812243 - 2² = 82500812239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82500812143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056746 + ... + 1132127.

It is an arithmetic number, because the mean of its divisors is an integer number (20625759702).

Almost surely, 2^82500812243 is an apocalyptic number.

82500812243 is a deficient number, since it is larger than the sum of its proper divisors (2226565).

82500812243 is a wasteful number, since it uses less digits than its factorization.

82500812243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226564.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 82500812243 in words is "eighty-two billion, five hundred million, eight hundred twelve thousand, two hundred forty-three".