79278840116 has 48 divisors (see below), whose sum is σ = 168573291264. Its totient is φ = 31886190336.

The previous prime is 79278840097. The next prime is 79278840149. The reversal of 79278840116 is 61104887297.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

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, 1127225 + ... + 1195488.

It is an arithmetic number, because the mean of its divisors is an integer number (3511943568).

Almost surely, 2^79278840116 is an apocalyptic number.

It is an amenable number.

79278840116 is an abundant number, since it is smaller than the sum of its proper divisors (89294451148).

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

79278840116 is a wasteful number, since it uses less digits than its factorization.

79278840116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322800 (or 2322798 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 79278840116 in words is "seventy-nine billion, two hundred seventy-eight million, eight hundred forty thousand, one hundred sixteen".