82050277865 has 8 divisors (see below), whose sum is σ = 98461870920. Its totient is φ = 65639197312.

The previous prime is 82050277853. The next prime is 82050277873. The reversal of 82050277865 is 56877205028.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20649402601 + 61400875264 = 143699^2 + 247792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82050277865 - 2⁶ = 82050277801 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 563717 + ... + 694173.

It is an arithmetic number, because the mean of its divisors is an integer number (12307733865).

Almost surely, 2^82050277865 is an apocalyptic number.

It is an amenable number.

82050277865 is a deficient number, since it is larger than the sum of its proper divisors (16411593055).

82050277865 is a wasteful number, since it uses less digits than its factorization.

82050277865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256251.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 82050277865 in words is "eighty-two billion, fifty million, two hundred seventy-seven thousand, eight hundred sixty-five".