78825599706 has 64 divisors (see below), whose sum is σ = 192764805120. Its totient is φ = 20986464960.

The previous prime is 78825599669. The next prime is 78825599719. The reversal of 78825599706 is 60799552887.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760986 + ... + 858341.

It is an arithmetic number, because the mean of its divisors is an integer number (3011950080).

Almost surely, 2^78825599706 is an apocalyptic number.

78825599706 is an abundant number, since it is smaller than the sum of its proper divisors (113939205414).

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

78825599706 is a wasteful number, since it uses less digits than its factorization.

78825599706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619419.

The product of its (nonzero) digits is 76204800, while the sum is 66.

The spelling of 78825599706 in words is "seventy-eight billion, eight hundred twenty-five million, five hundred ninety-nine thousand, seven hundred six".