78625506216 has 32 divisors (see below), whose sum is σ = 199332273600. Its totient is φ = 25839367680.

The previous prime is 78625506199. The next prime is 78625506229. The reversal of 78625506216 is 61260552687.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23069161 + ... + 23072568.

It is an arithmetic number, because the mean of its divisors is an integer number (6229133550).

Almost surely, 2^78625506216 is an apocalyptic number.

It is an amenable number.

78625506216 is an abundant number, since it is smaller than the sum of its proper divisors (120706767384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78625506216 is a wasteful number, since it uses less digits than its factorization.

78625506216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46141809 (or 46141805 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 78625506216 in words is "seventy-eight billion, six hundred twenty-five million, five hundred six thousand, two hundred sixteen".