79823480544 has 144 divisors (see below), whose sum is σ = 232628602752. Its totient is φ = 25955576064.

The previous prime is 79823480543. The next prime is 79823480563. The reversal of 79823480544 is 44508432897.

79823480544 is a `hidden beast` number, since 7 + 98 + 2 + 3 + 4 + 8 + 0 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79823480543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1967407 + ... + 2007569.

It is an arithmetic number, because the mean of its divisors is an integer number (1615476408).

Almost surely, 2^79823480544 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 79823480544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116314301376).

79823480544 is an abundant number, since it is smaller than the sum of its proper divisors (152805122208).

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

79823480544 is a wasteful number, since it uses less digits than its factorization.

79823480544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40349 (or 40338 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 79823480544 in words is "seventy-nine billion, eight hundred twenty-three million, four hundred eighty thousand, five hundred forty-four".