83217360806878 has 16 divisors (see below), whose sum is σ = 125470846437264. Its totient is φ = 41394022845120.

The previous prime is 83217360806873. The next prime is 83217360806891. The reversal of 83217360806878 is 87860806371238.

It is a super-2 number, since 2×83217360806878² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83217360806873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68778825 + ... + 69978292.

It is an arithmetic number, because the mean of its divisors is an integer number (7841927902329).

Almost surely, 2^{83217360806878} is an apocalyptic number.

83217360806878 is a deficient number, since it is larger than the sum of its proper divisors (42253485630386).

83217360806878 is a wasteful number, since it uses less digits than its factorization.

83217360806878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138758667.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 83217360806878 in words is "eighty-three trillion, two hundred seventeen billion, three hundred sixty million, eight hundred six thousand, eight hundred seventy-eight".