82163785051 has 4 divisors (see below), whose sum is σ = 82715220000. Its totient is φ = 81612350104.

The previous prime is 82163785021. The next prime is 82163785069. The reversal of 82163785051 is 15058736128.

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 82163785051 - 2⁹ = 82163784539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82163784992 and 82163785010.

It is not an unprimeable number, because it can be changed into a prime (82163785001) 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, 275717251 + ... + 275717548.

It is an arithmetic number, because the mean of its divisors is an integer number (20678805000).

Almost surely, 2^82163785051 is an apocalyptic number.

82163785051 is a deficient number, since it is larger than the sum of its proper divisors (551434949).

82163785051 is a wasteful number, since it uses less digits than its factorization.

82163785051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551434948.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 82163785051 in words is "eighty-two billion, one hundred sixty-three million, seven hundred eighty-five thousand, fifty-one".