79322544648 has 128 divisors (see below), whose sum is σ = 223153920000. Its totient is φ = 26105302080.

The previous prime is 79322544607. The next prime is 79322544689. The reversal of 79322544648 is 84644522397.

It is a happy number.

79322544648 is a `hidden beast` number, since 7 + 9 + 32 + 2 + 544 + 64 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (79322544607) and next prime (79322544689).

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 = 79322544594 and 79322544603.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5623861 + ... + 5637947.

It is an arithmetic number, because the mean of its divisors is an integer number (1743390000).

Almost surely, 2^79322544648 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 79322544648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111576960000).

79322544648 is an abundant number, since it is smaller than the sum of its proper divisors (143831375352).

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

79322544648 is a wasteful number, since it uses less digits than its factorization.

79322544648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14432 (or 14422 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 79322544648 in words is "seventy-nine billion, three hundred twenty-two million, five hundred forty-four thousand, six hundred forty-eight".