82738703217 has 4 divisors (see below), whose sum is σ = 110318270960. Its totient is φ = 55159135476.

The previous prime is 82738703209. The next prime is 82738703221. The reversal of 82738703217 is 71230783728.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82738703217 - 2³ = 82738703209 is a prime.

It is a super-2 number, since 2×82738703217² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82738703287) 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, 13789783867 + ... + 13789783872.

It is an arithmetic number, because the mean of its divisors is an integer number (27579567740).

Almost surely, 2^82738703217 is an apocalyptic number.

It is an amenable number.

82738703217 is a deficient number, since it is larger than the sum of its proper divisors (27579567743).

82738703217 is a wasteful number, since it uses less digits than its factorization.

82738703217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27579567742.

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 82738703217 in words is "eighty-two billion, seven hundred thirty-eight million, seven hundred three thousand, two hundred seventeen".