79845281792 has 52 divisors (see below), whose sum is σ = 159744158400. Its totient is φ = 39904370688.

The previous prime is 79845281783. The next prime is 79845281797. The reversal of 79845281792 is 29718254897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79845281797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15656459 + ... + 15661557.

Almost surely, 2^79845281792 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 79845281792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79872079200).

79845281792 is an abundant number, since it is smaller than the sum of its proper divisors (79898876608).

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

79845281792 is an equidigital number, since it uses as much as digits as its factorization.

79845281792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946 (or 8924 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 62.

The spelling of 79845281792 in words is "seventy-nine billion, eight hundred forty-five million, two hundred eighty-one thousand, seven hundred ninety-two".