82511650563 has 4 divisors (see below), whose sum is σ = 110015534088. Its totient is φ = 55007767040.

The previous prime is 82511650519. The next prime is 82511650621. The reversal of 82511650563 is 36505611528.

It is a happy number.

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 82511650563 - 2⁹ = 82511650051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82511650513) 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, 13751941758 + ... + 13751941763.

It is an arithmetic number, because the mean of its divisors is an integer number (27503883522).

Almost surely, 2^82511650563 is an apocalyptic number.

82511650563 is a deficient number, since it is larger than the sum of its proper divisors (27503883525).

82511650563 is a wasteful number, since it uses less digits than its factorization.

82511650563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27503883524.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 82511650563 in words is "eighty-two billion, five hundred eleven million, six hundred fifty thousand, five hundred sixty-three".