78704720112 has 80 divisors (see below), whose sum is σ = 206142083840. Its totient is φ = 25873344000.

The previous prime is 78704720071. The next prime is 78704720117. The reversal of 78704720112 is 21102740787.

It is a super-3 number, since 3×78704720112³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78704720117) 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, 968412 + ... + 1046532.

It is an arithmetic number, because the mean of its divisors is an integer number (2576776048).

Almost surely, 2^78704720112 is an apocalyptic number.

It is an amenable number.

78704720112 is an abundant number, since it is smaller than the sum of its proper divisors (127437363728).

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

78704720112 is a wasteful number, since it uses less digits than its factorization.

78704720112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78422 (or 78416 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 78704720112 in words is "seventy-eight billion, seven hundred four million, seven hundred twenty thousand, one hundred twelve".