79880847424 has 147 divisors (see below), whose sum is σ = 186745148607. Its totient is φ = 33902273664.

The previous prime is 79880847421. The next prime is 79880847433. The reversal of 79880847424 is 42474808897.

The square root of 79880847424 is 282632.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79880847421) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 775542157 + ... + 775542259.

Almost surely, 2^79880847424 is an apocalyptic number.

79880847424 is the 282632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79880847424

79880847424 is an abundant number, since it is smaller than the sum of its proper divisors (106864301183).

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

79880847424 is an frugal number, since it uses more digits than its factorization.

79880847424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 79880847424 in words is "seventy-nine billion, eight hundred eighty million, eight hundred forty-seven thousand, four hundred twenty-four".