78216113132246 has 8 divisors (see below), whose sum is σ = 117404583801240. Its totient is φ = 39081251865168.

The previous prime is 78216113132233. The next prime is 78216113132249. The reversal of 78216113132246 is 64223131161287.

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

It is a super-2 number, since 2×78216113132246² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78216113132246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78216113132249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13402346831 + ... + 13402352666.

It is an arithmetic number, because the mean of its divisors is an integer number (14675572975155).

Almost surely, 2^{78216113132246} is an apocalyptic number.

78216113132246 is a deficient number, since it is larger than the sum of its proper divisors (39188470668994).

78216113132246 is a wasteful number, since it uses less digits than its factorization.

78216113132246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26804700958.

The product of its digits is 580608, while the sum is 47.

The spelling of 78216113132246 in words is "seventy-eight trillion, two hundred sixteen billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred forty-six".