79031280000 has 160 divisors (see below), whose sum is σ = 262325372760. Its totient is φ = 21074944000.

The previous prime is 79031279959. The next prime is 79031280011. The reversal of 79031280000 is 8213097.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 79031280000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75352 + ... + 404648.

Almost surely, 2^79031280000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79031280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131162686380).

79031280000 is an abundant number, since it is smaller than the sum of its proper divisors (183294092760).

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

79031280000 is an equidigital number, since it uses as much as digits as its factorization.

79031280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329334 (or 329307 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 79031280000 its reverse (8213097), we get a palindrome (79039493097).

The spelling of 79031280000 in words is "seventy-nine billion, thirty-one million, two hundred eighty thousand".