82950918205 has 4 divisors (see below), whose sum is σ = 99541101852. Its totient is φ = 66360734560.

The previous prime is 82950918187. The next prime is 82950918241. The reversal of 82950918205 is 50281905928.

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 14659639929 + 68291278276 = 121077^2 + 261326^2 .

It is not a de Polignac number, because 82950918205 - 2¹⁹ = 82950393917 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8295091816 + ... + 8295091825.

It is an arithmetic number, because the mean of its divisors is an integer number (24885275463).

Almost surely, 2^82950918205 is an apocalyptic number.

It is an amenable number.

82950918205 is a deficient number, since it is larger than the sum of its proper divisors (16590183647).

82950918205 is a wasteful number, since it uses less digits than its factorization.

82950918205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590183646.

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 82950918205 in words is "eighty-two billion, nine hundred fifty million, nine hundred eighteen thousand, two hundred five".