78316788067 has 16 divisors (see below), whose sum is σ = 89786603520. Its totient is φ = 66917537568.

The previous prime is 78316788041. The next prime is 78316788139. The reversal of 78316788067 is 76088761387.

It is not a de Polignac number, because 78316788067 - 2¹⁵ = 78316755299 is a prime.

It is a super-2 number, since 2×78316788067² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78316787996 and 78316788014.

It is not an unprimeable number, because it can be changed into a prime (78316788007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12453798 + ... + 12460084.

It is an arithmetic number, because the mean of its divisors is an integer number (5611662720).

Almost surely, 2^78316788067 is an apocalyptic number.

78316788067 is a deficient number, since it is larger than the sum of its proper divisors (11469815453).

78316788067 is a wasteful number, since it uses less digits than its factorization.

78316788067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610.

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 78316788067 in words is "seventy-eight billion, three hundred sixteen million, seven hundred eighty-eight thousand, sixty-seven".