78216113132245 has 32 divisors (see below), whose sum is σ = 105368804868096. Its totient is φ = 55249144891200.

The previous prime is 78216113132233. The next prime is 78216113132249. The reversal of 78216113132245 is 54223131161287.

It is not a de Polignac number, because 78216113132245 - 2²⁵ = 78216079577813 is a prime.

It is a super-2 number, since 2×78216113132245² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78216113132195 and 78216113132204.

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 31 ways as a sum of consecutive naturals, for example, 115148709 + ... + 115825978.

It is an arithmetic number, because the mean of its divisors is an integer number (3292775152128).

Almost surely, 2^{78216113132245} is an apocalyptic number.

It is an amenable number.

78216113132245 is a deficient number, since it is larger than the sum of its proper divisors (27152691735851).

78216113132245 is a wasteful number, since it uses less digits than its factorization.

78216113132245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230974881.

The product of its digits is 483840, while the sum is 46.

The spelling of 78216113132245 in words is "seventy-eight trillion, two hundred sixteen billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred forty-five".