79571144448 has 180 divisors, whose sum is σ = 247584184848. Its totient is φ = 25370357760.

The previous prime is 79571144447. The next prime is 79571144453. The reversal of 79571144448 is 84444117597.

79571144448 is a `hidden beast` number, since 7 + 9 + 57 + 1 + 144 + 448 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 79571144394 and 79571144403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79571144447) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 393508 + ... + 560348.

Almost surely, 2^79571144448 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 79571144448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123792092424).

79571144448 is an abundant number, since it is smaller than the sum of its proper divisors (168013040400).

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

79571144448 is a wasteful number, since it uses less digits than its factorization.

79571144448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166892 (or 166869 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 79571144448 in words is "seventy-nine billion, five hundred seventy-one million, one hundred forty-four thousand, four hundred forty-eight".